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Finding the Fourth Proportional to 302,912.66, 454,422.98 and 100,520.93

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Solution

The fourth proportional to 302,912.66, 454,422.98 and 100,520.93 is: 150,799.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,912.66 : 454,422.98 = 100,520.93 : x
  2. Step 2: Convert to fraction form
    302,912.66/454,422.98 = 100,520.93/x
  3. Step 3: Cross multiply
    302,912.66x = 454,422.98 × 100,520.93
  4. Step 4: Simplify right side
    302,912.66x = 45,679,018,542.16
  5. Step 5: Solve for x
    x = 45,679,018,542.16/302,912.66
  6. Step 6: Final answer
    x = 150,799.31

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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.