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Finding the Fourth Proportional to 286,522.73, 395,377.61 and 157,454.42

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Solution

The fourth proportional to 286,522.73, 395,377.61 and 157,454.42 is: 217,274.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,522.73 : 395,377.61 = 157,454.42 : x
  2. Step 2: Convert to fraction form
    286,522.73/395,377.61 = 157,454.42/x
  3. Step 3: Cross multiply
    286,522.73x = 395,377.61 × 157,454.42
  4. Step 4: Simplify right side
    286,522.73x = 62,253,952,464.71
  5. Step 5: Solve for x
    x = 62,253,952,464.71/286,522.73
  6. Step 6: Final answer
    x = 217,274.04

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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.