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Finding the Fourth Proportional to 317,735, 438,477.32 and 174,498

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Solution

The fourth proportional to 317,735, 438,477.32 and 174,498 is: 240,808.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,735 : 438,477.32 = 174,498 : x
  2. Step 2: Convert to fraction form
    317,735/438,477.32 = 174,498/x
  3. Step 3: Cross multiply
    317,735x = 438,477.32 × 174,498
  4. Step 4: Simplify right side
    317,735x = 76,513,415,385.36
  5. Step 5: Solve for x
    x = 76,513,415,385.36/317,735
  6. Step 6: Final answer
    x = 240,808.90

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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.