Home / 282,335.11-389,623.22-155,018.95

Finding the Fourth Proportional to 282,335.11, 389,623.22 and 155,018.95

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Solution

The fourth proportional to 282,335.11, 389,623.22 and 155,018.95 is: 213,926.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,335.11 : 389,623.22 = 155,018.95 : x
  2. Step 2: Convert to fraction form
    282,335.11/389,623.22 = 155,018.95/x
  3. Step 3: Cross multiply
    282,335.11x = 389,623.22 × 155,018.95
  4. Step 4: Simplify right side
    282,335.11x = 60,398,981,684.92
  5. Step 5: Solve for x
    x = 60,398,981,684.92/282,335.11
  6. Step 6: Final answer
    x = 213,926.57

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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.