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Finding the Fourth Proportional to 551.05, 826.57 and 291.00

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Solution

The fourth proportional to 551.05, 826.57 and 291.00 is: 436.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    551.05 : 826.57 = 291.00 : x
  2. Step 2: Convert to fraction form
    551.05/826.57 = 291.00/x
  3. Step 3: Cross multiply
    551.05x = 826.57 × 291.00
  4. Step 4: Simplify right side
    551.05x = 240,528.04
  5. Step 5: Solve for x
    x = 240,528.04/551.05
  6. Step 6: Final answer
    x = 436.49

Related Problems

Find fourth proportional to 275.52, 413.28 and 145.50
Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.