Home / 222,271.86-306,732-126,780.15

Finding the Fourth Proportional to 222,271.86, 306,732 and 126,780.15

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Solution

The fourth proportional to 222,271.86, 306,732 and 126,780.15 is: 174,954.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,271.86 : 306,732 = 126,780.15 : x
  2. Step 2: Convert to fraction form
    222,271.86/306,732 = 126,780.15/x
  3. Step 3: Cross multiply
    222,271.86x = 306,732 × 126,780.15
  4. Step 4: Simplify right side
    222,271.86x = 38,887,528,969.80
  5. Step 5: Solve for x
    x = 38,887,528,969.80/222,271.86
  6. Step 6: Final answer
    x = 174,954.80

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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.