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Finding the Fourth Proportional to 181,490.85, 250,456.50 and 100,913.58

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Solution

The fourth proportional to 181,490.85, 250,456.50 and 100,913.58 is: 139,260.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,490.85 : 250,456.50 = 100,913.58 : x
  2. Step 2: Convert to fraction form
    181,490.85/250,456.50 = 100,913.58/x
  3. Step 3: Cross multiply
    181,490.85x = 250,456.50 × 100,913.58
  4. Step 4: Simplify right side
    181,490.85x = 25,274,462,049.27
  5. Step 5: Solve for x
    x = 25,274,462,049.27/181,490.85
  6. Step 6: Final answer
    x = 139,260.25

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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.