Home / 238,337.17-328,908-130,909.72

Finding the Fourth Proportional to 238,337.17, 328,908 and 130,909.72

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Solution

The fourth proportional to 238,337.17, 328,908 and 130,909.72 is: 180,656.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,337.17 : 328,908 = 130,909.72 : x
  2. Step 2: Convert to fraction form
    238,337.17/328,908 = 130,909.72/x
  3. Step 3: Cross multiply
    238,337.17x = 328,908 × 130,909.72
  4. Step 4: Simplify right side
    238,337.17x = 43,057,254,185.76
  5. Step 5: Solve for x
    x = 43,057,254,185.76/238,337.17
  6. Step 6: Final answer
    x = 180,656.90

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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.