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Finding the Fourth Proportional to 540,902.70, 811,430.85 and 166,886.70

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Solution

The fourth proportional to 540,902.70, 811,430.85 and 166,886.70 is: 250,353.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,902.70 : 811,430.85 = 166,886.70 : x
  2. Step 2: Convert to fraction form
    540,902.70/811,430.85 = 166,886.70/x
  3. Step 3: Cross multiply
    540,902.70x = 811,430.85 × 166,886.70
  4. Step 4: Simplify right side
    540,902.70x = 135,417,016,834.70
  5. Step 5: Solve for x
    x = 135,417,016,834.70/540,902.70
  6. Step 6: Final answer
    x = 250,353.75

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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.