Home / 278,925.09-384,900.33-151,599.57

Finding the Fourth Proportional to 278,925.09, 384,900.33 and 151,599.57

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Solution

The fourth proportional to 278,925.09, 384,900.33 and 151,599.57 is: 209,198.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,925.09 : 384,900.33 = 151,599.57 : x
  2. Step 2: Convert to fraction form
    278,925.09/384,900.33 = 151,599.57/x
  3. Step 3: Cross multiply
    278,925.09x = 384,900.33 × 151,599.57
  4. Step 4: Simplify right side
    278,925.09x = 58,350,724,520.86
  5. Step 5: Solve for x
    x = 58,350,724,520.86/278,925.09
  6. Step 6: Final answer
    x = 209,198.55

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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.