Home / 282,920.44-390,431.28-155,604.04

Finding the Fourth Proportional to 282,920.44, 390,431.28 and 155,604.04

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Solution

The fourth proportional to 282,920.44, 390,431.28 and 155,604.04 is: 214,734.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,920.44 : 390,431.28 = 155,604.04 : x
  2. Step 2: Convert to fraction form
    282,920.44/390,431.28 = 155,604.04/x
  3. Step 3: Cross multiply
    282,920.44x = 390,431.28 × 155,604.04
  4. Step 4: Simplify right side
    282,920.44x = 60,752,684,510.37
  5. Step 5: Solve for x
    x = 60,752,684,510.37/282,920.44
  6. Step 6: Final answer
    x = 214,734.17

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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.