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Finding the Fourth Proportional to 260,616.15, 391,048.88 and 146,854.71

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Solution

The fourth proportional to 260,616.15, 391,048.88 and 146,854.71 is: 220,352.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,616.15 : 391,048.88 = 146,854.71 : x
  2. Step 2: Convert to fraction form
    260,616.15/391,048.88 = 146,854.71/x
  3. Step 3: Cross multiply
    260,616.15x = 391,048.88 × 146,854.71
  4. Step 4: Simplify right side
    260,616.15x = 57,427,369,133.95
  5. Step 5: Solve for x
    x = 57,427,369,133.95/260,616.15
  6. Step 6: Final answer
    x = 220,352.30

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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.