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Finding the Fourth Proportional to 439,230.81, 605,904.12 and 267,201.39

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Solution

The fourth proportional to 439,230.81, 605,904.12 and 267,201.39 is: 368,595.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,230.81 : 605,904.12 = 267,201.39 : x
  2. Step 2: Convert to fraction form
    439,230.81/605,904.12 = 267,201.39/x
  3. Step 3: Cross multiply
    439,230.81x = 605,904.12 × 267,201.39
  4. Step 4: Simplify right side
    439,230.81x = 161,898,423,070.73
  5. Step 5: Solve for x
    x = 161,898,423,070.73/439,230.81
  6. Step 6: Final answer
    x = 368,595.32

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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.