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Finding the Fourth Proportional to 285,354.28, 393,782.88 and 158,022.28

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Solution

The fourth proportional to 285,354.28, 393,782.88 and 158,022.28 is: 218,067.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,354.28 : 393,782.88 = 158,022.28 : x
  2. Step 2: Convert to fraction form
    285,354.28/393,782.88 = 158,022.28/x
  3. Step 3: Cross multiply
    285,354.28x = 393,782.88 × 158,022.28
  4. Step 4: Simplify right side
    285,354.28x = 62,226,468,522.57
  5. Step 5: Solve for x
    x = 62,226,468,522.57/285,354.28
  6. Step 6: Final answer
    x = 218,067.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.