Home / 238,209.32-328,731.22-129,314.50

Finding the Fourth Proportional to 238,209.32, 328,731.22 and 129,314.50

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Solution

The fourth proportional to 238,209.32, 328,731.22 and 129,314.50 is: 178,455.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,209.32 : 328,731.22 = 129,314.50 : x
  2. Step 2: Convert to fraction form
    238,209.32/328,731.22 = 129,314.50/x
  3. Step 3: Cross multiply
    238,209.32x = 328,731.22 × 129,314.50
  4. Step 4: Simplify right side
    238,209.32x = 42,509,713,794.91
  5. Step 5: Solve for x
    x = 42,509,713,794.91/238,209.32
  6. Step 6: Final answer
    x = 178,455.29

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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.