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Finding the Fourth Proportional to 225,289.50, 310,909.23 and 124,687.50

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Solution

The fourth proportional to 225,289.50, 310,909.23 and 124,687.50 is: 172,074.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,289.50 : 310,909.23 = 124,687.50 : x
  2. Step 2: Convert to fraction form
    225,289.50/310,909.23 = 124,687.50/x
  3. Step 3: Cross multiply
    225,289.50x = 310,909.23 × 124,687.50
  4. Step 4: Simplify right side
    225,289.50x = 38,766,494,615.63
  5. Step 5: Solve for x
    x = 38,766,494,615.63/225,289.50
  6. Step 6: Final answer
    x = 172,074.13

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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.