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Finding the Fourth Proportional to 360,286.40, 538,874.40 and 304,299.20

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Solution

The fourth proportional to 360,286.40, 538,874.40 and 304,299.20 is: 455,135.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,286.40 : 538,874.40 = 304,299.20 : x
  2. Step 2: Convert to fraction form
    360,286.40/538,874.40 = 304,299.20/x
  3. Step 3: Cross multiply
    360,286.40x = 538,874.40 × 304,299.20
  4. Step 4: Simplify right side
    360,286.40x = 163,979,048,820.48
  5. Step 5: Solve for x
    x = 163,979,048,820.48/360,286.40
  6. Step 6: Final answer
    x = 455,135.27

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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.