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Finding the Fourth Proportional to 416,298.80, 624,739.80 and 266,902.40

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Solution

The fourth proportional to 416,298.80, 624,739.80 and 266,902.40 is: 400,540.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,298.80 : 624,739.80 = 266,902.40 : x
  2. Step 2: Convert to fraction form
    416,298.80/624,739.80 = 266,902.40/x
  3. Step 3: Cross multiply
    416,298.80x = 624,739.80 × 266,902.40
  4. Step 4: Simplify right side
    416,298.80x = 166,744,551,995.52
  5. Step 5: Solve for x
    x = 166,744,551,995.52/416,298.80
  6. Step 6: Final answer
    x = 400,540.55

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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.