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Finding the Fourth Proportional to 372,437.70, 558,656.55 and 123,119.70

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Solution

The fourth proportional to 372,437.70, 558,656.55 and 123,119.70 is: 184,679.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,437.70 : 558,656.55 = 123,119.70 : x
  2. Step 2: Convert to fraction form
    372,437.70/558,656.55 = 123,119.70/x
  3. Step 3: Cross multiply
    372,437.70x = 558,656.55 × 123,119.70
  4. Step 4: Simplify right side
    372,437.70x = 68,781,626,839.04
  5. Step 5: Solve for x
    x = 68,781,626,839.04/372,437.70
  6. Step 6: Final answer
    x = 184,679.55

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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.