Home / 282,932.89-390,450.64-155,610.61

Finding the Fourth Proportional to 282,932.89, 390,450.64 and 155,610.61

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Solution

The fourth proportional to 282,932.89, 390,450.64 and 155,610.61 is: 214,744.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,932.89 : 390,450.64 = 155,610.61 : x
  2. Step 2: Convert to fraction form
    282,932.89/390,450.64 = 155,610.61/x
  3. Step 3: Cross multiply
    282,932.89x = 390,450.64 × 155,610.61
  4. Step 4: Simplify right side
    282,932.89x = 60,758,262,265.29
  5. Step 5: Solve for x
    x = 60,758,262,265.29/282,932.89
  6. Step 6: Final answer
    x = 214,744.43

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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.