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Finding the Fourth Proportional to 238,080.78, 328,553.96 and 130,657.77

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Solution

The fourth proportional to 238,080.78, 328,553.96 and 130,657.77 is: 180,309.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,080.78 : 328,553.96 = 130,657.77 : x
  2. Step 2: Convert to fraction form
    238,080.78/328,553.96 = 130,657.77/x
  3. Step 3: Cross multiply
    238,080.78x = 328,553.96 × 130,657.77
  4. Step 4: Simplify right side
    238,080.78x = 42,928,127,084.98
  5. Step 5: Solve for x
    x = 42,928,127,084.98/238,080.78
  6. Step 6: Final answer
    x = 180,309.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.