Home / 426,342.72-639,363.96-141,956.04

Finding the Fourth Proportional to 426,342.72, 639,363.96 and 141,956.04

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Solution

The fourth proportional to 426,342.72, 639,363.96 and 141,956.04 is: 212,884.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,342.72 : 639,363.96 = 141,956.04 : x
  2. Step 2: Convert to fraction form
    426,342.72/639,363.96 = 141,956.04/x
  3. Step 3: Cross multiply
    426,342.72x = 639,363.96 × 141,956.04
  4. Step 4: Simplify right side
    426,342.72x = 90,761,575,880.32
  5. Step 5: Solve for x
    x = 90,761,575,880.32/426,342.72
  6. Step 6: Final answer
    x = 212,884.08

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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.