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Finding the Fourth Proportional to 278,261.44, 384,061.44 and 170,887.84

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Solution

The fourth proportional to 278,261.44, 384,061.44 and 170,887.84 is: 235,862.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,261.44 : 384,061.44 = 170,887.84 : x
  2. Step 2: Convert to fraction form
    278,261.44/384,061.44 = 170,887.84/x
  3. Step 3: Cross multiply
    278,261.44x = 384,061.44 × 170,887.84
  4. Step 4: Simplify right side
    278,261.44x = 65,631,429,908.89
  5. Step 5: Solve for x
    x = 65,631,429,908.89/278,261.44
  6. Step 6: Final answer
    x = 235,862.47

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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.