Home / 238,072.80-328,524.39-130,649.72

Finding the Fourth Proportional to 238,072.80, 328,524.39 and 130,649.72

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Solution

The fourth proportional to 238,072.80, 328,524.39 and 130,649.72 is: 180,287.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,072.80 : 328,524.39 = 130,649.72 : x
  2. Step 2: Convert to fraction form
    238,072.80/328,524.39 = 130,649.72/x
  3. Step 3: Cross multiply
    238,072.80x = 328,524.39 × 130,649.72
  4. Step 4: Simplify right side
    238,072.80x = 42,921,619,566.67
  5. Step 5: Solve for x
    x = 42,921,619,566.67/238,072.80
  6. Step 6: Final answer
    x = 180,287.79

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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.