Home / 282,651.12-390,040.20-161,793.36

Finding the Fourth Proportional to 282,651.12, 390,040.20 and 161,793.36

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Solution

The fourth proportional to 282,651.12, 390,040.20 and 161,793.36 is: 223,264.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,651.12 : 390,040.20 = 161,793.36 : x
  2. Step 2: Convert to fraction form
    282,651.12/390,040.20 = 161,793.36/x
  3. Step 3: Cross multiply
    282,651.12x = 390,040.20 × 161,793.36
  4. Step 4: Simplify right side
    282,651.12x = 63,105,914,493.07
  5. Step 5: Solve for x
    x = 63,105,914,493.07/282,651.12
  6. Step 6: Final answer
    x = 223,264.34

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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.