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Finding the Fourth Proportional to 278,323.84, 417,484.32 and 67,962.88

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Solution

The fourth proportional to 278,323.84, 417,484.32 and 67,962.88 is: 101,943.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,323.84 : 417,484.32 = 67,962.88 : x
  2. Step 2: Convert to fraction form
    278,323.84/417,484.32 = 67,962.88/x
  3. Step 3: Cross multiply
    278,323.84x = 417,484.32 × 67,962.88
  4. Step 4: Simplify right side
    278,323.84x = 28,373,436,742.04
  5. Step 5: Solve for x
    x = 28,373,436,742.04/278,323.84
  6. Step 6: Final answer
    x = 101,943.97

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1.5x scale

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.