Home / 287,682.20-431,507.76-88,002.62

Finding the Fourth Proportional to 287,682.20, 431,507.76 and 88,002.62

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Solution

The fourth proportional to 287,682.20, 431,507.76 and 88,002.62 is: 131,999.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,682.20 : 431,507.76 = 88,002.62 : x
  2. Step 2: Convert to fraction form
    287,682.20/431,507.76 = 88,002.62/x
  3. Step 3: Cross multiply
    287,682.20x = 431,507.76 × 88,002.62
  4. Step 4: Simplify right side
    287,682.20x = 37,973,811,272.79
  5. Step 5: Solve for x
    x = 37,973,811,272.79/287,682.20
  6. Step 6: Final answer
    x = 131,999.17

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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.