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Finding the Fourth Proportional to 486,436.32, 729,618.48 and 170,896.32

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Solution

The fourth proportional to 486,436.32, 729,618.48 and 170,896.32 is: 256,331.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,436.32 : 729,618.48 = 170,896.32 : x
  2. Step 2: Convert to fraction form
    486,436.32/729,618.48 = 170,896.32/x
  3. Step 3: Cross multiply
    486,436.32x = 729,618.48 × 170,896.32
  4. Step 4: Simplify right side
    486,436.32x = 124,689,113,235.99
  5. Step 5: Solve for x
    x = 124,689,113,235.99/486,436.32
  6. Step 6: Final answer
    x = 256,331.83

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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.