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Finding the Fourth Proportional to 317,651.13, 438,365.61 and 174,411.72

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Solution

The fourth proportional to 317,651.13, 438,365.61 and 174,411.72 is: 240,692.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,651.13 : 438,365.61 = 174,411.72 : x
  2. Step 2: Convert to fraction form
    317,651.13/438,365.61 = 174,411.72/x
  3. Step 3: Cross multiply
    317,651.13x = 438,365.61 × 174,411.72
  4. Step 4: Simplify right side
    317,651.13x = 76,456,100,028.95
  5. Step 5: Solve for x
    x = 76,456,100,028.95/317,651.13
  6. Step 6: Final answer
    x = 240,692.04

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1.5x scale

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.