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Finding the Fourth Proportional to 155,344.82, 232,978.64 and 66,588.26

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Solution

The fourth proportional to 155,344.82, 232,978.64 and 66,588.26 is: 99,865.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,344.82 : 232,978.64 = 66,588.26 : x
  2. Step 2: Convert to fraction form
    155,344.82/232,978.64 = 66,588.26/x
  3. Step 3: Cross multiply
    155,344.82x = 232,978.64 × 66,588.26
  4. Step 4: Simplify right side
    155,344.82x = 15,513,642,254.77
  5. Step 5: Solve for x
    x = 15,513,642,254.77/155,344.82
  6. Step 6: Final answer
    x = 99,865.85

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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.