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Finding the Fourth Proportional to 360,084.45, 540,207.05 and 135,446.75

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Solution

The fourth proportional to 360,084.45, 540,207.05 and 135,446.75 is: 203,200.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,084.45 : 540,207.05 = 135,446.75 : x
  2. Step 2: Convert to fraction form
    360,084.45/540,207.05 = 135,446.75/x
  3. Step 3: Cross multiply
    360,084.45x = 540,207.05 × 135,446.75
  4. Step 4: Simplify right side
    360,084.45x = 73,169,287,897.10
  5. Step 5: Solve for x
    x = 73,169,287,897.10/360,084.45
  6. Step 6: Final answer
    x = 203,200.35

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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.