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Finding the Fourth Proportional to 486,088.75, 729,168.16 and 186,569.33

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Solution

The fourth proportional to 486,088.75, 729,168.16 and 186,569.33 is: 279,867.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,088.75 : 729,168.16 = 186,569.33 : x
  2. Step 2: Convert to fraction form
    486,088.75/729,168.16 = 186,569.33/x
  3. Step 3: Cross multiply
    486,088.75x = 729,168.16 × 186,569.33
  4. Step 4: Simplify right side
    486,088.75x = 136,040,412,276.48
  5. Step 5: Solve for x
    x = 136,040,412,276.48/486,088.75
  6. Step 6: Final answer
    x = 279,867.44

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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.