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Finding the Fourth Proportional to 238,159.98, 328,659.53 and 130,731.84

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Solution

The fourth proportional to 238,159.98, 328,659.53 and 130,731.84 is: 180,409.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,159.98 : 328,659.53 = 130,731.84 : x
  2. Step 2: Convert to fraction form
    238,159.98/328,659.53 = 130,731.84/x
  3. Step 3: Cross multiply
    238,159.98x = 328,659.53 × 130,731.84
  4. Step 4: Simplify right side
    238,159.98x = 42,966,264,436.78
  5. Step 5: Solve for x
    x = 42,966,264,436.78/238,159.98
  6. Step 6: Final answer
    x = 180,409.25

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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.