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Finding the Fourth Proportional to 351,933, 527,987.52 and 102,615

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Solution

The fourth proportional to 351,933, 527,987.52 and 102,615 is: 153,948.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,933 : 527,987.52 = 102,615 : x
  2. Step 2: Convert to fraction form
    351,933/527,987.52 = 102,615/x
  3. Step 3: Cross multiply
    351,933x = 527,987.52 × 102,615
  4. Step 4: Simplify right side
    351,933x = 54,179,439,364.80
  5. Step 5: Solve for x
    x = 54,179,439,364.80/351,933
  6. Step 6: Final answer
    x = 153,948.16

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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.