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Finding the Fourth Proportional to 286,884.96, 395,916.17 and 159,560.25

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Solution

The fourth proportional to 286,884.96, 395,916.17 and 159,560.25 is: 220,201.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,884.96 : 395,916.17 = 159,560.25 : x
  2. Step 2: Convert to fraction form
    286,884.96/395,916.17 = 159,560.25/x
  3. Step 3: Cross multiply
    286,884.96x = 395,916.17 × 159,560.25
  4. Step 4: Simplify right side
    286,884.96x = 63,172,482,266.44
  5. Step 5: Solve for x
    x = 63,172,482,266.44/286,884.96
  6. Step 6: Final answer
    x = 220,201.44

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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.