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Finding the Fourth Proportional to 617.93, 926.79 and 207.02

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Solution

The fourth proportional to 617.93, 926.79 and 207.02 is: 310.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    617.93 : 926.79 = 207.02 : x
  2. Step 2: Convert to fraction form
    617.93/926.79 = 207.02/x
  3. Step 3: Cross multiply
    617.93x = 926.79 × 207.02
  4. Step 4: Simplify right side
    617.93x = 191,864.07
  5. Step 5: Solve for x
    x = 191,864.07/617.93
  6. Step 6: Final answer
    x = 310.49

Related Problems

Find fourth proportional to 308.97, 463.40 and 103.51
Half scale
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Double scale
Find fourth proportional to 618.93, 928.29 and 208.02
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.