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Finding the Fourth Proportional to 360,502.77, 540,755.33 and 135,802.90

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Solution

The fourth proportional to 360,502.77, 540,755.33 and 135,802.90 is: 203,704.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,502.77 : 540,755.33 = 135,802.90 : x
  2. Step 2: Convert to fraction form
    360,502.77/540,755.33 = 135,802.90/x
  3. Step 3: Cross multiply
    360,502.77x = 540,755.33 × 135,802.90
  4. Step 4: Simplify right side
    360,502.77x = 73,436,142,004.46
  5. Step 5: Solve for x
    x = 73,436,142,004.46/360,502.77
  6. Step 6: Final answer
    x = 203,704.79

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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.