Home / 278,964.54-384,988.95-156,468.42

Finding the Fourth Proportional to 278,964.54, 384,988.95 and 156,468.42

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Solution

The fourth proportional to 278,964.54, 384,988.95 and 156,468.42 is: 215,936.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,964.54 : 384,988.95 = 156,468.42 : x
  2. Step 2: Convert to fraction form
    278,964.54/384,988.95 = 156,468.42/x
  3. Step 3: Cross multiply
    278,964.54x = 384,988.95 × 156,468.42
  4. Step 4: Simplify right side
    278,964.54x = 60,238,612,723.96
  5. Step 5: Solve for x
    x = 60,238,612,723.96/278,964.54
  6. Step 6: Final answer
    x = 215,936.45

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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.