Home / 238,338.45-328,906.31-130,915.17

Finding the Fourth Proportional to 238,338.45, 328,906.31 and 130,915.17

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Solution

The fourth proportional to 238,338.45, 328,906.31 and 130,915.17 is: 180,662.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,338.45 : 328,906.31 = 130,915.17 : x
  2. Step 2: Convert to fraction form
    238,338.45/328,906.31 = 130,915.17/x
  3. Step 3: Cross multiply
    238,338.45x = 328,906.31 × 130,915.17
  4. Step 4: Simplify right side
    238,338.45x = 43,058,824,833.15
  5. Step 5: Solve for x
    x = 43,058,824,833.15/238,338.45
  6. Step 6: Final answer
    x = 180,662.52

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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.