Home / 272,385.10-408,577.70-72,706.24

Finding the Fourth Proportional to 272,385.10, 408,577.70 and 72,706.24

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Solution

The fourth proportional to 272,385.10, 408,577.70 and 72,706.24 is: 109,059.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,385.10 : 408,577.70 = 72,706.24 : x
  2. Step 2: Convert to fraction form
    272,385.10/408,577.70 = 72,706.24/x
  3. Step 3: Cross multiply
    272,385.10x = 408,577.70 × 72,706.24
  4. Step 4: Simplify right side
    272,385.10x = 29,706,148,314.85
  5. Step 5: Solve for x
    x = 29,706,148,314.85/272,385.10
  6. Step 6: Final answer
    x = 109,059.37

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1.5x scale

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.