Home / 292,015.72-438,091.98-123,551.20

Finding the Fourth Proportional to 292,015.72, 438,091.98 and 123,551.20

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Solution

The fourth proportional to 292,015.72, 438,091.98 and 123,551.20 is: 185,355.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,015.72 : 438,091.98 = 123,551.20 : x
  2. Step 2: Convert to fraction form
    292,015.72/438,091.98 = 123,551.20/x
  3. Step 3: Cross multiply
    292,015.72x = 438,091.98 × 123,551.20
  4. Step 4: Simplify right side
    292,015.72x = 54,126,789,839.38
  5. Step 5: Solve for x
    x = 54,126,789,839.38/292,015.72
  6. Step 6: Final answer
    x = 185,355.74

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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.