Home / 238,339.18-328,910.76-130,911.72

Finding the Fourth Proportional to 238,339.18, 328,910.76 and 130,911.72

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Solution

The fourth proportional to 238,339.18, 328,910.76 and 130,911.72 is: 180,659.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,339.18 : 328,910.76 = 130,911.72 : x
  2. Step 2: Convert to fraction form
    238,339.18/328,910.76 = 130,911.72/x
  3. Step 3: Cross multiply
    238,339.18x = 328,910.76 × 130,911.72
  4. Step 4: Simplify right side
    238,339.18x = 43,058,273,318.11
  5. Step 5: Solve for x
    x = 43,058,273,318.11/238,339.18
  6. Step 6: Final answer
    x = 180,659.65

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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.