Home / 283,039.11-390,649.80-162,261.49

Finding the Fourth Proportional to 283,039.11, 390,649.80 and 162,261.49

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Solution

The fourth proportional to 283,039.11, 390,649.80 and 162,261.49 is: 223,952.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,039.11 : 390,649.80 = 162,261.49 : x
  2. Step 2: Convert to fraction form
    283,039.11/390,649.80 = 162,261.49/x
  3. Step 3: Cross multiply
    283,039.11x = 390,649.80 × 162,261.49
  4. Step 4: Simplify right side
    283,039.11x = 63,387,419,592.83
  5. Step 5: Solve for x
    x = 63,387,419,592.83/283,039.11
  6. Step 6: Final answer
    x = 223,952.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.