Home / 238,204.17-328,722.30-130,781.11

Finding the Fourth Proportional to 238,204.17, 328,722.30 and 130,781.11

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Solution

The fourth proportional to 238,204.17, 328,722.30 and 130,781.11 is: 180,478.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,204.17 : 328,722.30 = 130,781.11 : x
  2. Step 2: Convert to fraction form
    238,204.17/328,722.30 = 130,781.11/x
  3. Step 3: Cross multiply
    238,204.17x = 328,722.30 × 130,781.11
  4. Step 4: Simplify right side
    238,204.17x = 42,990,667,275.75
  5. Step 5: Solve for x
    x = 42,990,667,275.75/238,204.17
  6. Step 6: Final answer
    x = 180,478.23

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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.