Home / 278,261.73-383,575.10-170,632.17

Finding the Fourth Proportional to 278,261.73, 383,575.10 and 170,632.17

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Solution

The fourth proportional to 278,261.73, 383,575.10 and 170,632.17 is: 235,211.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,261.73 : 383,575.10 = 170,632.17 : x
  2. Step 2: Convert to fraction form
    278,261.73/383,575.10 = 170,632.17/x
  3. Step 3: Cross multiply
    278,261.73x = 383,575.10 × 170,632.17
  4. Step 4: Simplify right side
    278,261.73x = 65,450,250,817.81
  5. Step 5: Solve for x
    x = 65,450,250,817.81/278,261.73
  6. Step 6: Final answer
    x = 235,211.11

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1.5x scale

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.