Home / 278,211.04-417,320.88-67,852.96

Finding the Fourth Proportional to 278,211.04, 417,320.88 and 67,852.96

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Solution

The fourth proportional to 278,211.04, 417,320.88 and 67,852.96 is: 101,780.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,211.04 : 417,320.88 = 67,852.96 : x
  2. Step 2: Convert to fraction form
    278,211.04/417,320.88 = 67,852.96/x
  3. Step 3: Cross multiply
    278,211.04x = 417,320.88 × 67,852.96
  4. Step 4: Simplify right side
    278,211.04x = 28,316,456,977.80
  5. Step 5: Solve for x
    x = 28,316,456,977.80/278,211.04
  6. Step 6: Final answer
    x = 101,780.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.