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Finding the Fourth Proportional to 402,842.97, 603,720.14 and 153,388.89

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Solution

The fourth proportional to 402,842.97, 603,720.14 and 153,388.89 is: 229,876.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,842.97 : 603,720.14 = 153,388.89 : x
  2. Step 2: Convert to fraction form
    402,842.97/603,720.14 = 153,388.89/x
  3. Step 3: Cross multiply
    402,842.97x = 603,720.14 × 153,388.89
  4. Step 4: Simplify right side
    402,842.97x = 92,603,961,378.30
  5. Step 5: Solve for x
    x = 92,603,961,378.30/402,842.97
  6. Step 6: Final answer
    x = 229,876.08

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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.