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Finding the Fourth Proportional to 451,143, 622,577.48 and 269,862.57

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Solution

The fourth proportional to 451,143, 622,577.48 and 269,862.57 is: 372,410.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,143 : 622,577.48 = 269,862.57 : x
  2. Step 2: Convert to fraction form
    451,143/622,577.48 = 269,862.57/x
  3. Step 3: Cross multiply
    451,143x = 622,577.48 × 269,862.57
  4. Step 4: Simplify right side
    451,143x = 168,010,357,427.61
  5. Step 5: Solve for x
    x = 168,010,357,427.61/451,143
  6. Step 6: Final answer
    x = 372,410.43

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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.