Home / 275,631.60-380,348.28-154,763.40

Finding the Fourth Proportional to 275,631.60, 380,348.28 and 154,763.40

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Solution

The fourth proportional to 275,631.60, 380,348.28 and 154,763.40 is: 213,560.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,631.60 : 380,348.28 = 154,763.40 : x
  2. Step 2: Convert to fraction form
    275,631.60/380,348.28 = 154,763.40/x
  3. Step 3: Cross multiply
    275,631.60x = 380,348.28 × 154,763.40
  4. Step 4: Simplify right side
    275,631.60x = 58,863,992,996.95
  5. Step 5: Solve for x
    x = 58,863,992,996.95/275,631.60
  6. Step 6: Final answer
    x = 213,560.39

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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.