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Finding the Fourth Proportional to 260,244.80, 389,200.80 and 218,254.40

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Solution

The fourth proportional to 260,244.80, 389,200.80 and 218,254.40 is: 326,403.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,244.80 : 389,200.80 = 218,254.40 : x
  2. Step 2: Convert to fraction form
    260,244.80/389,200.80 = 218,254.40/x
  3. Step 3: Cross multiply
    260,244.80x = 389,200.80 × 218,254.40
  4. Step 4: Simplify right side
    260,244.80x = 84,944,787,083.52
  5. Step 5: Solve for x
    x = 84,944,787,083.52/260,244.80
  6. Step 6: Final answer
    x = 326,403.40

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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.