Home / 387,655.08-581,842.44-198,250.80

Finding the Fourth Proportional to 387,655.08, 581,842.44 and 198,250.80

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Solution

The fourth proportional to 387,655.08, 581,842.44 and 198,250.80 is: 297,560.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,655.08 : 581,842.44 = 198,250.80 : x
  2. Step 2: Convert to fraction form
    387,655.08/581,842.44 = 198,250.80/x
  3. Step 3: Cross multiply
    387,655.08x = 581,842.44 × 198,250.80
  4. Step 4: Simplify right side
    387,655.08x = 115,350,729,203.95
  5. Step 5: Solve for x
    x = 115,350,729,203.95/387,655.08
  6. Step 6: Final answer
    x = 297,560.22

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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.