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Finding the Fourth Proportional to 302,679.16, 417,737.22 and 195,560.80

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Solution

The fourth proportional to 302,679.16, 417,737.22 and 195,560.80 is: 269,899.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,679.16 : 417,737.22 = 195,560.80 : x
  2. Step 2: Convert to fraction form
    302,679.16/417,737.22 = 195,560.80/x
  3. Step 3: Cross multiply
    302,679.16x = 417,737.22 × 195,560.80
  4. Step 4: Simplify right side
    302,679.16x = 81,693,024,932.98
  5. Step 5: Solve for x
    x = 81,693,024,932.98/302,679.16
  6. Step 6: Final answer
    x = 269,899.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.