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Finding the Fourth Proportional to 260,020.20, 389,374.20 and 207,532.20

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Solution

The fourth proportional to 260,020.20, 389,374.20 and 207,532.20 is: 310,774.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,020.20 : 389,374.20 = 207,532.20 : x
  2. Step 2: Convert to fraction form
    260,020.20/389,374.20 = 207,532.20/x
  3. Step 3: Cross multiply
    260,020.20x = 389,374.20 × 207,532.20
  4. Step 4: Simplify right side
    260,020.20x = 80,807,684,349.24
  5. Step 5: Solve for x
    x = 80,807,684,349.24/260,020.20
  6. Step 6: Final answer
    x = 310,774.64

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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.