Home / 238,274.18-328,822.14-129,378.45

Finding the Fourth Proportional to 238,274.18, 328,822.14 and 129,378.45

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Solution

The fourth proportional to 238,274.18, 328,822.14 and 129,378.45 is: 178,544.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,274.18 : 328,822.14 = 129,378.45 : x
  2. Step 2: Convert to fraction form
    238,274.18/328,822.14 = 129,378.45/x
  3. Step 3: Cross multiply
    238,274.18x = 328,822.14 × 129,378.45
  4. Step 4: Simplify right side
    238,274.18x = 42,542,500,517.14
  5. Step 5: Solve for x
    x = 42,542,500,517.14/238,274.18
  6. Step 6: Final answer
    x = 178,544.32

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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.