Home / 238,912.32-329,699.04-131,490

Finding the Fourth Proportional to 238,912.32, 329,699.04 and 131,490

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Solution

The fourth proportional to 238,912.32, 329,699.04 and 131,490 is: 181,456.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,912.32 : 329,699.04 = 131,490 : x
  2. Step 2: Convert to fraction form
    238,912.32/329,699.04 = 131,490/x
  3. Step 3: Cross multiply
    238,912.32x = 329,699.04 × 131,490
  4. Step 4: Simplify right side
    238,912.32x = 43,352,126,769.60
  5. Step 5: Solve for x
    x = 43,352,126,769.60/238,912.32
  6. Step 6: Final answer
    x = 181,456.22

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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.