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Finding the Fourth Proportional to 410,246.40, 614,908.80 and 210,489.60

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Solution

The fourth proportional to 410,246.40, 614,908.80 and 210,489.60 is: 315,497.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,246.40 : 614,908.80 = 210,489.60 : x
  2. Step 2: Convert to fraction form
    410,246.40/614,908.80 = 210,489.60/x
  3. Step 3: Cross multiply
    410,246.40x = 614,908.80 × 210,489.60
  4. Step 4: Simplify right side
    410,246.40x = 129,431,907,348.48
  5. Step 5: Solve for x
    x = 129,431,907,348.48/410,246.40
  6. Step 6: Final answer
    x = 315,497.97

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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.