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Finding the Fourth Proportional to 260,074.20, 389,528.10 and 260,074.20

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Solution

The fourth proportional to 260,074.20, 389,528.10 and 260,074.20 is: 389,528.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,074.20 : 389,528.10 = 260,074.20 : x
  2. Step 2: Convert to fraction form
    260,074.20/389,528.10 = 260,074.20/x
  3. Step 3: Cross multiply
    260,074.20x = 389,528.10 × 260,074.20
  4. Step 4: Simplify right side
    260,074.20x = 101,306,208,985.02
  5. Step 5: Solve for x
    x = 101,306,208,985.02/260,074.20
  6. Step 6: Final answer
    x = 389,528.10

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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.