Home / 325,934.58-489,041.29-136,439.23

Finding the Fourth Proportional to 325,934.58, 489,041.29 and 136,439.23

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Solution

The fourth proportional to 325,934.58, 489,041.29 and 136,439.23 is: 204,717.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,934.58 : 489,041.29 = 136,439.23 : x
  2. Step 2: Convert to fraction form
    325,934.58/489,041.29 = 136,439.23/x
  3. Step 3: Cross multiply
    325,934.58x = 489,041.29 × 136,439.23
  4. Step 4: Simplify right side
    325,934.58x = 66,724,417,045.81
  5. Step 5: Solve for x
    x = 66,724,417,045.81/325,934.58
  6. Step 6: Final answer
    x = 204,717.21

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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.