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Finding the Fourth Proportional to 551,813.80, 827,720.70 and 197,228.20

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Solution

The fourth proportional to 551,813.80, 827,720.70 and 197,228.20 is: 295,842.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,813.80 : 827,720.70 = 197,228.20 : x
  2. Step 2: Convert to fraction form
    551,813.80/827,720.70 = 197,228.20/x
  3. Step 3: Cross multiply
    551,813.80x = 827,720.70 × 197,228.20
  4. Step 4: Simplify right side
    551,813.80x = 163,249,863,763.74
  5. Step 5: Solve for x
    x = 163,249,863,763.74/551,813.80
  6. Step 6: Final answer
    x = 295,842.30

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Similar ratio
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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.