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Finding the Fourth Proportional to 547,206.30, 820,809.45 and 192,102.30

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Solution

The fourth proportional to 547,206.30, 820,809.45 and 192,102.30 is: 288,153.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,206.30 : 820,809.45 = 192,102.30 : x
  2. Step 2: Convert to fraction form
    547,206.30/820,809.45 = 192,102.30/x
  3. Step 3: Cross multiply
    547,206.30x = 820,809.45 × 192,102.30
  4. Step 4: Simplify right side
    547,206.30x = 157,679,383,206.74
  5. Step 5: Solve for x
    x = 157,679,383,206.74/547,206.30
  6. Step 6: Final answer
    x = 288,153.45

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Similar ratio
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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.