Home / 238,455.06-329,065.65-131,022.78

Finding the Fourth Proportional to 238,455.06, 329,065.65 and 131,022.78

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Solution

The fourth proportional to 238,455.06, 329,065.65 and 131,022.78 is: 180,810.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,455.06 : 329,065.65 = 131,022.78 : x
  2. Step 2: Convert to fraction form
    238,455.06/329,065.65 = 131,022.78/x
  3. Step 3: Cross multiply
    238,455.06x = 329,065.65 × 131,022.78
  4. Step 4: Simplify right side
    238,455.06x = 43,115,096,265.51
  5. Step 5: Solve for x
    x = 43,115,096,265.51/238,455.06
  6. Step 6: Final answer
    x = 180,810.15

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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.