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Finding the Fourth Proportional to 499,419.40, 749,129.10 and 166,995.40

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Solution

The fourth proportional to 499,419.40, 749,129.10 and 166,995.40 is: 250,493.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,419.40 : 749,129.10 = 166,995.40 : x
  2. Step 2: Convert to fraction form
    499,419.40/749,129.10 = 166,995.40/x
  3. Step 3: Cross multiply
    499,419.40x = 749,129.10 × 166,995.40
  4. Step 4: Simplify right side
    499,419.40x = 125,101,113,706.14
  5. Step 5: Solve for x
    x = 125,101,113,706.14/499,419.40
  6. Step 6: Final answer
    x = 250,493.10

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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.