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Finding the Fourth Proportional to 438,166.48, 657,453.15 and 168,204.79

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Solution

The fourth proportional to 438,166.48, 657,453.15 and 168,204.79 is: 252,385.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,166.48 : 657,453.15 = 168,204.79 : x
  2. Step 2: Convert to fraction form
    438,166.48/657,453.15 = 168,204.79/x
  3. Step 3: Cross multiply
    438,166.48x = 657,453.15 × 168,204.79
  4. Step 4: Simplify right side
    438,166.48x = 110,586,768,189.57
  5. Step 5: Solve for x
    x = 110,586,768,189.57/438,166.48
  6. Step 6: Final answer
    x = 252,385.28

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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.