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Finding the Fourth Proportional to 438,751.69, 658,127.53 and 106,327.69

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Solution

The fourth proportional to 438,751.69, 658,127.53 and 106,327.69 is: 159,491.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,751.69 : 658,127.53 = 106,327.69 : x
  2. Step 2: Convert to fraction form
    438,751.69/658,127.53 = 106,327.69/x
  3. Step 3: Cross multiply
    438,751.69x = 658,127.53 × 106,327.69
  4. Step 4: Simplify right side
    438,751.69x = 69,977,178,477.90
  5. Step 5: Solve for x
    x = 69,977,178,477.90/438,751.69
  6. Step 6: Final answer
    x = 159,491.53

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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.