Home / 259,537.74-389,364.27-79,648.17

Finding the Fourth Proportional to 259,537.74, 389,364.27 and 79,648.17

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Solution

The fourth proportional to 259,537.74, 389,364.27 and 79,648.17 is: 119,489.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,537.74 : 389,364.27 = 79,648.17 : x
  2. Step 2: Convert to fraction form
    259,537.74/389,364.27 = 79,648.17/x
  3. Step 3: Cross multiply
    259,537.74x = 389,364.27 × 79,648.17
  4. Step 4: Simplify right side
    259,537.74x = 31,012,151,568.89
  5. Step 5: Solve for x
    x = 31,012,151,568.89/259,537.74
  6. Step 6: Final answer
    x = 119,489.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.