Home / 205,827.06-308,421.76-142,769.78

Finding the Fourth Proportional to 205,827.06, 308,421.76 and 142,769.78

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Solution

The fourth proportional to 205,827.06, 308,421.76 and 142,769.78 is: 213,933.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,827.06 : 308,421.76 = 142,769.78 : x
  2. Step 2: Convert to fraction form
    205,827.06/308,421.76 = 142,769.78/x
  3. Step 3: Cross multiply
    205,827.06x = 308,421.76 × 142,769.78
  4. Step 4: Simplify right side
    205,827.06x = 44,033,306,822.41
  5. Step 5: Solve for x
    x = 44,033,306,822.41/205,827.06
  6. Step 6: Final answer
    x = 213,933.52

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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.