Home / 432,156.12-648,185.61-165,729.70

Finding the Fourth Proportional to 432,156.12, 648,185.61 and 165,729.70

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Solution

The fourth proportional to 432,156.12, 648,185.61 and 165,729.70 is: 248,575.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,156.12 : 648,185.61 = 165,729.70 : x
  2. Step 2: Convert to fraction form
    432,156.12/648,185.61 = 165,729.70/x
  3. Step 3: Cross multiply
    432,156.12x = 648,185.61 × 165,729.70
  4. Step 4: Simplify right side
    432,156.12x = 107,423,606,689.62
  5. Step 5: Solve for x
    x = 107,423,606,689.62/432,156.12
  6. Step 6: Final answer
    x = 248,575.92

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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.