Home / 282,775.06-390,234.45-155,456.02

Finding the Fourth Proportional to 282,775.06, 390,234.45 and 155,456.02

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Solution

The fourth proportional to 282,775.06, 390,234.45 and 155,456.02 is: 214,531.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,775.06 : 390,234.45 = 155,456.02 : x
  2. Step 2: Convert to fraction form
    282,775.06/390,234.45 = 155,456.02/x
  3. Step 3: Cross multiply
    282,775.06x = 390,234.45 × 155,456.02
  4. Step 4: Simplify right side
    282,775.06x = 60,664,294,463.89
  5. Step 5: Solve for x
    x = 60,664,294,463.89/282,775.06
  6. Step 6: Final answer
    x = 214,531.98

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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.