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Finding the Fourth Proportional to 438,099.92, 657,150.60 and 105,675.92

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Solution

The fourth proportional to 438,099.92, 657,150.60 and 105,675.92 is: 158,514.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,099.92 : 657,150.60 = 105,675.92 : x
  2. Step 2: Convert to fraction form
    438,099.92/657,150.60 = 105,675.92/x
  3. Step 3: Cross multiply
    438,099.92x = 657,150.60 × 105,675.92
  4. Step 4: Simplify right side
    438,099.92x = 69,444,994,233.55
  5. Step 5: Solve for x
    x = 69,444,994,233.55/438,099.92
  6. Step 6: Final answer
    x = 158,514.05

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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.