Home / 434,553.20-651,878.40-135,031.40

Finding the Fourth Proportional to 434,553.20, 651,878.40 and 135,031.40

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Solution

The fourth proportional to 434,553.20, 651,878.40 and 135,031.40 is: 202,562.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,553.20 : 651,878.40 = 135,031.40 : x
  2. Step 2: Convert to fraction form
    434,553.20/651,878.40 = 135,031.40/x
  3. Step 3: Cross multiply
    434,553.20x = 651,878.40 × 135,031.40
  4. Step 4: Simplify right side
    434,553.20x = 88,024,052,981.76
  5. Step 5: Solve for x
    x = 88,024,052,981.76/434,553.20
  6. Step 6: Final answer
    x = 202,562.20

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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.