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Finding the Fourth Proportional to 500.59, 751.19 and 318.07

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Solution

The fourth proportional to 500.59, 751.19 and 318.07 is: 477.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    500.59 : 751.19 = 318.07 : x
  2. Step 2: Convert to fraction form
    500.59/751.19 = 318.07/x
  3. Step 3: Cross multiply
    500.59x = 751.19 × 318.07
  4. Step 4: Simplify right side
    500.59x = 238,931.00
  5. Step 5: Solve for x
    x = 238,931.00/500.59
  6. Step 6: Final answer
    x = 477.30

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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.