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Finding the Fourth Proportional to 500.19, 750.83 and 317.13

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Solution

The fourth proportional to 500.19, 750.83 and 317.13 is: 476.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    500.19 : 750.83 = 317.13 : x
  2. Step 2: Convert to fraction form
    500.19/750.83 = 317.13/x
  3. Step 3: Cross multiply
    500.19x = 750.83 × 317.13
  4. Step 4: Simplify right side
    500.19x = 238,109.13
  5. Step 5: Solve for x
    x = 238,109.13/500.19
  6. Step 6: Final answer
    x = 476.04

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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.