Home / 278,091.09-413,559-269,233.74

Finding the Fourth Proportional to 278,091.09, 413,559 and 269,233.74

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Solution

The fourth proportional to 278,091.09, 413,559 and 269,233.74 is: 400,386.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,091.09 : 413,559 = 269,233.74 : x
  2. Step 2: Convert to fraction form
    278,091.09/413,559 = 269,233.74/x
  3. Step 3: Cross multiply
    278,091.09x = 413,559 × 269,233.74
  4. Step 4: Simplify right side
    278,091.09x = 111,344,036,280.66
  5. Step 5: Solve for x
    x = 111,344,036,280.66/278,091.09
  6. Step 6: Final answer
    x = 400,386.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.