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Finding the Fourth Proportional to 438,314.80, 657,472.20 and 227,925.40

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Solution

The fourth proportional to 438,314.80, 657,472.20 and 227,925.40 is: 341,888.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,314.80 : 657,472.20 = 227,925.40 : x
  2. Step 2: Convert to fraction form
    438,314.80/657,472.20 = 227,925.40/x
  3. Step 3: Cross multiply
    438,314.80x = 657,472.20 × 227,925.40
  4. Step 4: Simplify right side
    438,314.80x = 149,854,614,173.88
  5. Step 5: Solve for x
    x = 149,854,614,173.88/438,314.80
  6. Step 6: Final answer
    x = 341,888.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.