Home / 278,570.19-384,426.85-151,245.80

Finding the Fourth Proportional to 278,570.19, 384,426.85 and 151,245.80

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Solution

The fourth proportional to 278,570.19, 384,426.85 and 151,245.80 is: 208,719.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,570.19 : 384,426.85 = 151,245.80 : x
  2. Step 2: Convert to fraction form
    278,570.19/384,426.85 = 151,245.80/x
  3. Step 3: Cross multiply
    278,570.19x = 384,426.85 × 151,245.80
  4. Step 4: Simplify right side
    278,570.19x = 58,142,946,469.73
  5. Step 5: Solve for x
    x = 58,142,946,469.73/278,570.19
  6. Step 6: Final answer
    x = 208,719.20

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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.