Home / 238,066.74-328,531.20-130,638.57

Finding the Fourth Proportional to 238,066.74, 328,531.20 and 130,638.57

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Solution

The fourth proportional to 238,066.74, 328,531.20 and 130,638.57 is: 180,280.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,066.74 : 328,531.20 = 130,638.57 : x
  2. Step 2: Convert to fraction form
    238,066.74/328,531.20 = 130,638.57/x
  3. Step 3: Cross multiply
    238,066.74x = 328,531.20 × 130,638.57
  4. Step 4: Simplify right side
    238,066.74x = 42,918,846,168.38
  5. Step 5: Solve for x
    x = 42,918,846,168.38/238,066.74
  6. Step 6: Final answer
    x = 180,280.73

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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.