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Finding the Fourth Proportional to 440,187.88, 660,309.98 and 124,669.80

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Solution

The fourth proportional to 440,187.88, 660,309.98 and 124,669.80 is: 187,012.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,187.88 : 660,309.98 = 124,669.80 : x
  2. Step 2: Convert to fraction form
    440,187.88/660,309.98 = 124,669.80/x
  3. Step 3: Cross multiply
    440,187.88x = 660,309.98 × 124,669.80
  4. Step 4: Simplify right side
    440,187.88x = 82,320,713,144.60
  5. Step 5: Solve for x
    x = 82,320,713,144.60/440,187.88
  6. Step 6: Final answer
    x = 187,012.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.