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Finding the Fourth Proportional to 438,050.99, 656,824.98 and 171,499.43

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Solution

The fourth proportional to 438,050.99, 656,824.98 and 171,499.43 is: 257,150.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,050.99 : 656,824.98 = 171,499.43 : x
  2. Step 2: Convert to fraction form
    438,050.99/656,824.98 = 171,499.43/x
  3. Step 3: Cross multiply
    438,050.99x = 656,824.98 × 171,499.43
  4. Step 4: Simplify right side
    438,050.99x = 112,645,109,679.76
  5. Step 5: Solve for x
    x = 112,645,109,679.76/438,050.99
  6. Step 6: Final answer
    x = 257,150.68

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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.