Home / 282,942.24-390,458.25-155,615.10

Finding the Fourth Proportional to 282,942.24, 390,458.25 and 155,615.10

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Solution

The fourth proportional to 282,942.24, 390,458.25 and 155,615.10 is: 214,747.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,942.24 : 390,458.25 = 155,615.10 : x
  2. Step 2: Convert to fraction form
    282,942.24/390,458.25 = 155,615.10/x
  3. Step 3: Cross multiply
    282,942.24x = 390,458.25 × 155,615.10
  4. Step 4: Simplify right side
    282,942.24x = 60,761,199,619.58
  5. Step 5: Solve for x
    x = 60,761,199,619.58/282,942.24
  6. Step 6: Final answer
    x = 214,747.72

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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.