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Finding the Fourth Proportional to 440,253.59, 660,676.37 and 155,943.18

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Solution

The fourth proportional to 440,253.59, 660,676.37 and 155,943.18 is: 234,019.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,253.59 : 660,676.37 = 155,943.18 : x
  2. Step 2: Convert to fraction form
    440,253.59/660,676.37 = 155,943.18/x
  3. Step 3: Cross multiply
    440,253.59x = 660,676.37 × 155,943.18
  4. Step 4: Simplify right side
    440,253.59x = 103,027,973,308.94
  5. Step 5: Solve for x
    x = 103,027,973,308.94/440,253.59
  6. Step 6: Final answer
    x = 234,019.61

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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.