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Finding the Fourth Proportional to 438,295.32, 657,176.88 and 171,736.46

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Solution

The fourth proportional to 438,295.32, 657,176.88 and 171,736.46 is: 257,500.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,295.32 : 657,176.88 = 171,736.46 : x
  2. Step 2: Convert to fraction form
    438,295.32/657,176.88 = 171,736.46/x
  3. Step 3: Cross multiply
    438,295.32x = 657,176.88 × 171,736.46
  4. Step 4: Simplify right side
    438,295.32x = 112,861,230,965.05
  5. Step 5: Solve for x
    x = 112,861,230,965.05/438,295.32
  6. Step 6: Final answer
    x = 257,500.42

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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.