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Finding the Fourth Proportional to 221,898.48, 306,144.99 and 126,337.47

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Solution

The fourth proportional to 221,898.48, 306,144.99 and 126,337.47 is: 174,303.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,898.48 : 306,144.99 = 126,337.47 : x
  2. Step 2: Convert to fraction form
    221,898.48/306,144.99 = 126,337.47/x
  3. Step 3: Cross multiply
    221,898.48x = 306,144.99 × 126,337.47
  4. Step 4: Simplify right side
    221,898.48x = 38,677,583,489.78
  5. Step 5: Solve for x
    x = 38,677,583,489.78/221,898.48
  6. Step 6: Final answer
    x = 174,303.06

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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.