Home / 278,116.13-383,797.95-157,281.14

Finding the Fourth Proportional to 278,116.13, 383,797.95 and 157,281.14

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Solution

The fourth proportional to 278,116.13, 383,797.95 and 157,281.14 is: 217,046.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,116.13 : 383,797.95 = 157,281.14 : x
  2. Step 2: Convert to fraction form
    278,116.13/383,797.95 = 157,281.14/x
  3. Step 3: Cross multiply
    278,116.13x = 383,797.95 × 157,281.14
  4. Step 4: Simplify right side
    278,116.13x = 60,364,179,475.35
  5. Step 5: Solve for x
    x = 60,364,179,475.35/278,116.13
  6. Step 6: Final answer
    x = 217,046.67

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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.