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Finding the Fourth Proportional to 449,218.89, 619,698.38 and 267,803.01

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Solution

The fourth proportional to 449,218.89, 619,698.38 and 267,803.01 is: 369,434.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,218.89 : 619,698.38 = 267,803.01 : x
  2. Step 2: Convert to fraction form
    449,218.89/619,698.38 = 267,803.01/x
  3. Step 3: Cross multiply
    449,218.89x = 619,698.38 × 267,803.01
  4. Step 4: Simplify right side
    449,218.89x = 165,957,090,117.11
  5. Step 5: Solve for x
    x = 165,957,090,117.11/449,218.89
  6. Step 6: Final answer
    x = 369,434.80

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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.