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Finding the Fourth Proportional to 440,807.40, 661,211.10 and 108,383.40

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Solution

The fourth proportional to 440,807.40, 661,211.10 and 108,383.40 is: 162,575.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,807.40 : 661,211.10 = 108,383.40 : x
  2. Step 2: Convert to fraction form
    440,807.40/661,211.10 = 108,383.40/x
  3. Step 3: Cross multiply
    440,807.40x = 661,211.10 × 108,383.40
  4. Step 4: Simplify right side
    440,807.40x = 71,664,307,135.74
  5. Step 5: Solve for x
    x = 71,664,307,135.74/440,807.40
  6. Step 6: Final answer
    x = 162,575.10

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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.