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Finding the Fourth Proportional to 551,339.40, 827,009.10 and 177,400.20

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Solution

The fourth proportional to 551,339.40, 827,009.10 and 177,400.20 is: 266,100.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,339.40 : 827,009.10 = 177,400.20 : x
  2. Step 2: Convert to fraction form
    551,339.40/827,009.10 = 177,400.20/x
  3. Step 3: Cross multiply
    551,339.40x = 827,009.10 × 177,400.20
  4. Step 4: Simplify right side
    551,339.40x = 146,711,579,741.82
  5. Step 5: Solve for x
    x = 146,711,579,741.82/551,339.40
  6. Step 6: Final answer
    x = 266,100.30

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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.