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Finding the Fourth Proportional to 307,415.31, 424,233.48 and 169,591.11

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Solution

The fourth proportional to 307,415.31, 424,233.48 and 169,591.11 is: 234,035.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,415.31 : 424,233.48 = 169,591.11 : x
  2. Step 2: Convert to fraction form
    307,415.31/424,233.48 = 169,591.11/x
  3. Step 3: Cross multiply
    307,415.31x = 424,233.48 × 169,591.11
  4. Step 4: Simplify right side
    307,415.31x = 71,946,226,772.36
  5. Step 5: Solve for x
    x = 71,946,226,772.36/307,415.31
  6. Step 6: Final answer
    x = 234,035.93

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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.