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Finding the Fourth Proportional to 515,381.22, 773,144.76 and 160,431.12

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Solution

The fourth proportional to 515,381.22, 773,144.76 and 160,431.12 is: 240,669.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,381.22 : 773,144.76 = 160,431.12 : x
  2. Step 2: Convert to fraction form
    515,381.22/773,144.76 = 160,431.12/x
  3. Step 3: Cross multiply
    515,381.22x = 773,144.76 × 160,431.12
  4. Step 4: Simplify right side
    515,381.22x = 124,036,479,768.93
  5. Step 5: Solve for x
    x = 124,036,479,768.93/515,381.22
  6. Step 6: Final answer
    x = 240,669.38

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Similar ratio
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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.