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Finding the Fourth Proportional to 302,251.20, 452,858.40 and 144,139.20

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Solution

The fourth proportional to 302,251.20, 452,858.40 and 144,139.20 is: 215,961.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,251.20 : 452,858.40 = 144,139.20 : x
  2. Step 2: Convert to fraction form
    302,251.20/452,858.40 = 144,139.20/x
  3. Step 3: Cross multiply
    302,251.20x = 452,858.40 × 144,139.20
  4. Step 4: Simplify right side
    302,251.20x = 65,274,647,489.28
  5. Step 5: Solve for x
    x = 65,274,647,489.28/302,251.20
  6. Step 6: Final answer
    x = 215,961.58

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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.