Home / 282,919.44-390,429.90-155,603.04

Finding the Fourth Proportional to 282,919.44, 390,429.90 and 155,603.04

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Solution

The fourth proportional to 282,919.44, 390,429.90 and 155,603.04 is: 214,732.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,919.44 : 390,429.90 = 155,603.04 : x
  2. Step 2: Convert to fraction form
    282,919.44/390,429.90 = 155,603.04/x
  3. Step 3: Cross multiply
    282,919.44x = 390,429.90 × 155,603.04
  4. Step 4: Simplify right side
    282,919.44x = 60,752,079,346.90
  5. Step 5: Solve for x
    x = 60,752,079,346.90/282,919.44
  6. Step 6: Final answer
    x = 214,732.79

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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.