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Finding the Fourth Proportional to 238,084.56, 328,560.71 and 130,664.58

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Solution

The fourth proportional to 238,084.56, 328,560.71 and 130,664.58 is: 180,319.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,084.56 : 328,560.71 = 130,664.58 : x
  2. Step 2: Convert to fraction form
    238,084.56/328,560.71 = 130,664.58/x
  3. Step 3: Cross multiply
    238,084.56x = 328,560.71 × 130,664.58
  4. Step 4: Simplify right side
    238,084.56x = 42,931,246,523.33
  5. Step 5: Solve for x
    x = 42,931,246,523.33/238,084.56
  6. Step 6: Final answer
    x = 180,319.32

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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.