Home / 282,444.30-389,775.78-155,122.56

Finding the Fourth Proportional to 282,444.30, 389,775.78 and 155,122.56

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Solution

The fourth proportional to 282,444.30, 389,775.78 and 155,122.56 is: 214,070.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,444.30 : 389,775.78 = 155,122.56 : x
  2. Step 2: Convert to fraction form
    282,444.30/389,775.78 = 155,122.56/x
  3. Step 3: Cross multiply
    282,444.30x = 389,775.78 × 155,122.56
  4. Step 4: Simplify right side
    282,444.30x = 60,463,016,819.60
  5. Step 5: Solve for x
    x = 60,463,016,819.60/282,444.30
  6. Step 6: Final answer
    x = 214,070.59

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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.