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Finding the Fourth Proportional to 155,279.52, 232,968.47 and 55,437.48

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Solution

The fourth proportional to 155,279.52, 232,968.47 and 55,437.48 is: 83,173.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,279.52 : 232,968.47 = 55,437.48 : x
  2. Step 2: Convert to fraction form
    155,279.52/232,968.47 = 55,437.48/x
  3. Step 3: Cross multiply
    155,279.52x = 232,968.47 × 55,437.48
  4. Step 4: Simplify right side
    155,279.52x = 12,915,184,619.07
  5. Step 5: Solve for x
    x = 12,915,184,619.07/155,279.52
  6. Step 6: Final answer
    x = 83,173.78

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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.