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Finding the Fourth Proportional to 201,878.80, 302,490.15 and 168,417.70

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Solution

The fourth proportional to 201,878.80, 302,490.15 and 168,417.70 is: 252,352.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,878.80 : 302,490.15 = 168,417.70 : x
  2. Step 2: Convert to fraction form
    201,878.80/302,490.15 = 168,417.70/x
  3. Step 3: Cross multiply
    201,878.80x = 302,490.15 × 168,417.70
  4. Step 4: Simplify right side
    201,878.80x = 50,944,695,335.66
  5. Step 5: Solve for x
    x = 50,944,695,335.66/201,878.80
  6. Step 6: Final answer
    x = 252,352.87

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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.