Home / 408,533.23-612,603.01-142,287.85

Finding the Fourth Proportional to 408,533.23, 612,603.01 and 142,287.85

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Solution

The fourth proportional to 408,533.23, 612,603.01 and 142,287.85 is: 213,363.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,533.23 : 612,603.01 = 142,287.85 : x
  2. Step 2: Convert to fraction form
    408,533.23/612,603.01 = 142,287.85/x
  3. Step 3: Cross multiply
    408,533.23x = 612,603.01 × 142,287.85
  4. Step 4: Simplify right side
    408,533.23x = 87,165,961,421.97
  5. Step 5: Solve for x
    x = 87,165,961,421.97/408,533.23
  6. Step 6: Final answer
    x = 213,363.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.