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Finding the Fourth Proportional to 307,327.56, 424,070.28 and 171,344.76

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Solution

The fourth proportional to 307,327.56, 424,070.28 and 171,344.76 is: 236,432.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,327.56 : 424,070.28 = 171,344.76 : x
  2. Step 2: Convert to fraction form
    307,327.56/424,070.28 = 171,344.76/x
  3. Step 3: Cross multiply
    307,327.56x = 424,070.28 × 171,344.76
  4. Step 4: Simplify right side
    307,327.56x = 72,662,220,349.73
  5. Step 5: Solve for x
    x = 72,662,220,349.73/307,327.56
  6. Step 6: Final answer
    x = 236,432.49

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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.