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Finding the Fourth Proportional to 185,630.80, 278,446.20 and 166,385.20

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Solution

The fourth proportional to 185,630.80, 278,446.20 and 166,385.20 is: 249,577.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,630.80 : 278,446.20 = 166,385.20 : x
  2. Step 2: Convert to fraction form
    185,630.80/278,446.20 = 166,385.20/x
  3. Step 3: Cross multiply
    185,630.80x = 278,446.20 × 166,385.20
  4. Step 4: Simplify right side
    185,630.80x = 46,329,326,676.24
  5. Step 5: Solve for x
    x = 46,329,326,676.24/185,630.80
  6. Step 6: Final answer
    x = 249,577.80

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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.