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Finding the Fourth Proportional to 438,697.50, 658,043.01 and 123,154.44

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Solution

The fourth proportional to 438,697.50, 658,043.01 and 123,154.44 is: 184,730.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,697.50 : 658,043.01 = 123,154.44 : x
  2. Step 2: Convert to fraction form
    438,697.50/658,043.01 = 123,154.44/x
  3. Step 3: Cross multiply
    438,697.50x = 658,043.01 × 123,154.44
  4. Step 4: Simplify right side
    438,697.50x = 81,040,918,392.46
  5. Step 5: Solve for x
    x = 81,040,918,392.46/438,697.50
  6. Step 6: Final answer
    x = 184,730.75

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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.