Home / 238,044.40-328,490.28-130,611.76

Finding the Fourth Proportional to 238,044.40, 328,490.28 and 130,611.76

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Solution

The fourth proportional to 238,044.40, 328,490.28 and 130,611.76 is: 180,238.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,044.40 : 328,490.28 = 130,611.76 : x
  2. Step 2: Convert to fraction form
    238,044.40/328,490.28 = 130,611.76/x
  3. Step 3: Cross multiply
    238,044.40x = 328,490.28 × 130,611.76
  4. Step 4: Simplify right side
    238,044.40x = 42,904,693,613.69
  5. Step 5: Solve for x
    x = 42,904,693,613.69/238,044.40
  6. Step 6: Final answer
    x = 180,238.20

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1.5x scale

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.