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Finding the Fourth Proportional to 289,250.60, 389,244.14 and 289,250.60

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Solution

The fourth proportional to 289,250.60, 389,244.14 and 289,250.60 is: 389,244.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,250.60 : 389,244.14 = 289,250.60 : x
  2. Step 2: Convert to fraction form
    289,250.60/389,244.14 = 289,250.60/x
  3. Step 3: Cross multiply
    289,250.60x = 389,244.14 × 289,250.60
  4. Step 4: Simplify right side
    289,250.60x = 112,589,101,041.48
  5. Step 5: Solve for x
    x = 112,589,101,041.48/289,250.60
  6. Step 6: Final answer
    x = 389,244.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.