Home / 205,235.60-307,561.80-142,833.20

Finding the Fourth Proportional to 205,235.60, 307,561.80 and 142,833.20

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Solution

The fourth proportional to 205,235.60, 307,561.80 and 142,833.20 is: 214,046.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,235.60 : 307,561.80 = 142,833.20 : x
  2. Step 2: Convert to fraction form
    205,235.60/307,561.80 = 142,833.20/x
  3. Step 3: Cross multiply
    205,235.60x = 307,561.80 × 142,833.20
  4. Step 4: Simplify right side
    205,235.60x = 43,930,036,091.76
  5. Step 5: Solve for x
    x = 43,930,036,091.76/205,235.60
  6. Step 6: Final answer
    x = 214,046.86

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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.