Home / 389,540.89-584,387.07-149,637.25

Finding the Fourth Proportional to 389,540.89, 584,387.07 and 149,637.25

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Solution

The fourth proportional to 389,540.89, 584,387.07 and 149,637.25 is: 224,484.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,540.89 : 584,387.07 = 149,637.25 : x
  2. Step 2: Convert to fraction form
    389,540.89/584,387.07 = 149,637.25/x
  3. Step 3: Cross multiply
    389,540.89x = 584,387.07 × 149,637.25
  4. Step 4: Simplify right side
    389,540.89x = 87,446,074,090.36
  5. Step 5: Solve for x
    x = 87,446,074,090.36/389,540.89
  6. Step 6: Final answer
    x = 224,484.97

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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.