Home / 432,977.97-649,353.15-129,300.06

Finding the Fourth Proportional to 432,977.97, 649,353.15 and 129,300.06

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Solution

The fourth proportional to 432,977.97, 649,353.15 and 129,300.06 is: 193,916.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,977.97 : 649,353.15 = 129,300.06 : x
  2. Step 2: Convert to fraction form
    432,977.97/649,353.15 = 129,300.06/x
  3. Step 3: Cross multiply
    432,977.97x = 649,353.15 × 129,300.06
  4. Step 4: Simplify right side
    432,977.97x = 83,961,401,256.19
  5. Step 5: Solve for x
    x = 83,961,401,256.19/432,977.97
  6. Step 6: Final answer
    x = 193,916.10

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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.