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Finding the Fourth Proportional to 438,079.52, 657,020.18 and 201,194.48

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Solution

The fourth proportional to 438,079.52, 657,020.18 and 201,194.48 is: 301,746.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,079.52 : 657,020.18 = 201,194.48 : x
  2. Step 2: Convert to fraction form
    438,079.52/657,020.18 = 201,194.48/x
  3. Step 3: Cross multiply
    438,079.52x = 657,020.18 × 201,194.48
  4. Step 4: Simplify right side
    438,079.52x = 132,188,833,464.61
  5. Step 5: Solve for x
    x = 132,188,833,464.61/438,079.52
  6. Step 6: Final answer
    x = 301,746.21

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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.