Home / 238,079.45-328,498.31-137,419.13

Finding the Fourth Proportional to 238,079.45, 328,498.31 and 137,419.13

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Solution

The fourth proportional to 238,079.45, 328,498.31 and 137,419.13 is: 189,608.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,079.45 : 328,498.31 = 137,419.13 : x
  2. Step 2: Convert to fraction form
    238,079.45/328,498.31 = 137,419.13/x
  3. Step 3: Cross multiply
    238,079.45x = 328,498.31 × 137,419.13
  4. Step 4: Simplify right side
    238,079.45x = 45,141,950,667.73
  5. Step 5: Solve for x
    x = 45,141,950,667.73/238,079.45
  6. Step 6: Final answer
    x = 189,608.77

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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.