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Finding the Fourth Proportional to 321,215.70, 481,823.55 and 202,502.10

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Solution

The fourth proportional to 321,215.70, 481,823.55 and 202,502.10 is: 303,753.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,215.70 : 481,823.55 = 202,502.10 : x
  2. Step 2: Convert to fraction form
    321,215.70/481,823.55 = 202,502.10/x
  3. Step 3: Cross multiply
    321,215.70x = 481,823.55 × 202,502.10
  4. Step 4: Simplify right side
    321,215.70x = 97,570,280,704.46
  5. Step 5: Solve for x
    x = 97,570,280,704.46/321,215.70
  6. Step 6: Final answer
    x = 303,753.15

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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.