Home / 219,387.09-302,784.25-126,250.90

Finding the Fourth Proportional to 219,387.09, 302,784.25 and 126,250.90

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Solution

The fourth proportional to 219,387.09, 302,784.25 and 126,250.90 is: 174,243.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,387.09 : 302,784.25 = 126,250.90 : x
  2. Step 2: Convert to fraction form
    219,387.09/302,784.25 = 126,250.90/x
  3. Step 3: Cross multiply
    219,387.09x = 302,784.25 × 126,250.90
  4. Step 4: Simplify right side
    219,387.09x = 38,226,784,825.29
  5. Step 5: Solve for x
    x = 38,226,784,825.29/219,387.09
  6. Step 6: Final answer
    x = 174,243.55

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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.