Home / 282,821.68-390,301.61-153,768.84

Finding the Fourth Proportional to 282,821.68, 390,301.61 and 153,768.84

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Solution

The fourth proportional to 282,821.68, 390,301.61 and 153,768.84 is: 212,205.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,821.68 : 390,301.61 = 153,768.84 : x
  2. Step 2: Convert to fraction form
    282,821.68/390,301.61 = 153,768.84/x
  3. Step 3: Cross multiply
    282,821.68x = 390,301.61 × 153,768.84
  4. Step 4: Simplify right side
    282,821.68x = 60,016,223,868.32
  5. Step 5: Solve for x
    x = 60,016,223,868.32/282,821.68
  6. Step 6: Final answer
    x = 212,205.18

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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.