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Finding the Fourth Proportional to 317,073.15, 437,329.13 and 202,430.61

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Solution

The fourth proportional to 317,073.15, 437,329.13 and 202,430.61 is: 279,206.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,073.15 : 437,329.13 = 202,430.61 : x
  2. Step 2: Convert to fraction form
    317,073.15/437,329.13 = 202,430.61/x
  3. Step 3: Cross multiply
    317,073.15x = 437,329.13 × 202,430.61
  4. Step 4: Simplify right side
    317,073.15x = 88,528,801,544.52
  5. Step 5: Solve for x
    x = 88,528,801,544.52/317,073.15
  6. Step 6: Final answer
    x = 279,206.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.