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Finding the Fourth Proportional to 235,815.68, 325,320.48 and 159,310.16

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Solution

The fourth proportional to 235,815.68, 325,320.48 and 159,310.16 is: 219,776.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,815.68 : 325,320.48 = 159,310.16 : x
  2. Step 2: Convert to fraction form
    235,815.68/325,320.48 = 159,310.16/x
  3. Step 3: Cross multiply
    235,815.68x = 325,320.48 × 159,310.16
  4. Step 4: Simplify right side
    235,815.68x = 51,826,857,720.08
  5. Step 5: Solve for x
    x = 51,826,857,720.08/235,815.68
  6. Step 6: Final answer
    x = 219,776.98

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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.