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Finding the Fourth Proportional to 299,463.02, 449,259.06 and 86,229.46

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Solution

The fourth proportional to 299,463.02, 449,259.06 and 86,229.46 is: 129,362.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,463.02 : 449,259.06 = 86,229.46 : x
  2. Step 2: Convert to fraction form
    299,463.02/449,259.06 = 86,229.46/x
  3. Step 3: Cross multiply
    299,463.02x = 449,259.06 × 86,229.46
  4. Step 4: Simplify right side
    299,463.02x = 38,739,366,143.91
  5. Step 5: Solve for x
    x = 38,739,366,143.91/299,463.02
  6. Step 6: Final answer
    x = 129,362.77

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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.