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Finding the Fourth Proportional to 514.95, 772.89 and 370.77

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Solution

The fourth proportional to 514.95, 772.89 and 370.77 is: 556.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    514.95 : 772.89 = 370.77 : x
  2. Step 2: Convert to fraction form
    514.95/772.89 = 370.77/x
  3. Step 3: Cross multiply
    514.95x = 772.89 × 370.77
  4. Step 4: Simplify right side
    514.95x = 286,564.43
  5. Step 5: Solve for x
    x = 286,564.43/514.95
  6. Step 6: Final answer
    x = 556.49

Related Problems

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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.