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Finding the Fourth Proportional to 547,119.68, 820,726.50 and 192,103.16

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Solution

The fourth proportional to 547,119.68, 820,726.50 and 192,103.16 is: 288,171.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,119.68 : 820,726.50 = 192,103.16 : x
  2. Step 2: Convert to fraction form
    547,119.68/820,726.50 = 192,103.16/x
  3. Step 3: Cross multiply
    547,119.68x = 820,726.50 × 192,103.16
  4. Step 4: Simplify right side
    547,119.68x = 157,664,154,145.74
  5. Step 5: Solve for x
    x = 157,664,154,145.74/547,119.68
  6. Step 6: Final answer
    x = 288,171.24

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1.5x scale

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.