Home / 278,385.86-384,179.93-151,061.55

Finding the Fourth Proportional to 278,385.86, 384,179.93 and 151,061.55

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Solution

The fourth proportional to 278,385.86, 384,179.93 and 151,061.55 is: 208,468.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,385.86 : 384,179.93 = 151,061.55 : x
  2. Step 2: Convert to fraction form
    278,385.86/384,179.93 = 151,061.55/x
  3. Step 3: Cross multiply
    278,385.86x = 384,179.93 × 151,061.55
  4. Step 4: Simplify right side
    278,385.86x = 58,034,814,949.38
  5. Step 5: Solve for x
    x = 58,034,814,949.38/278,385.86
  6. Step 6: Final answer
    x = 208,468.98

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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.