Home / 282,974.24-390,502.41-155,647.10

Finding the Fourth Proportional to 282,974.24, 390,502.41 and 155,647.10

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Solution

The fourth proportional to 282,974.24, 390,502.41 and 155,647.10 is: 214,791.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,974.24 : 390,502.41 = 155,647.10 : x
  2. Step 2: Convert to fraction form
    282,974.24/390,502.41 = 155,647.10/x
  3. Step 3: Cross multiply
    282,974.24x = 390,502.41 × 155,647.10
  4. Step 4: Simplify right side
    282,974.24x = 60,780,567,659.51
  5. Step 5: Solve for x
    x = 60,780,567,659.51/282,974.24
  6. Step 6: Final answer
    x = 214,791.88

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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.