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Finding the Fourth Proportional to 278,718.95, 384,791.75 and 183,502.44

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Solution

The fourth proportional to 278,718.95, 384,791.75 and 183,502.44 is: 253,338.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,718.95 : 384,791.75 = 183,502.44 : x
  2. Step 2: Convert to fraction form
    278,718.95/384,791.75 = 183,502.44/x
  3. Step 3: Cross multiply
    278,718.95x = 384,791.75 × 183,502.44
  4. Step 4: Simplify right side
    278,718.95x = 70,610,225,016.87
  5. Step 5: Solve for x
    x = 70,610,225,016.87/278,718.95
  6. Step 6: Final answer
    x = 253,338.44

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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.