Home / 238,320.45-328,884.17-130,891.77

Finding the Fourth Proportional to 238,320.45, 328,884.17 and 130,891.77

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Solution

The fourth proportional to 238,320.45, 328,884.17 and 130,891.77 is: 180,631.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,320.45 : 328,884.17 = 130,891.77 : x
  2. Step 2: Convert to fraction form
    238,320.45/328,884.17 = 130,891.77/x
  3. Step 3: Cross multiply
    238,320.45x = 328,884.17 × 130,891.77
  4. Step 4: Simplify right side
    238,320.45x = 43,048,230,481.82
  5. Step 5: Solve for x
    x = 43,048,230,481.82/238,320.45
  6. Step 6: Final answer
    x = 180,631.71

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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.