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Finding the Fourth Proportional to 223,519.67, 308,447.76 and 126,730.04

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Solution

The fourth proportional to 223,519.67, 308,447.76 and 126,730.04 is: 174,882.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,519.67 : 308,447.76 = 126,730.04 : x
  2. Step 2: Convert to fraction form
    223,519.67/308,447.76 = 126,730.04/x
  3. Step 3: Cross multiply
    223,519.67x = 308,447.76 × 126,730.04
  4. Step 4: Simplify right side
    223,519.67x = 39,089,596,962.71
  5. Step 5: Solve for x
    x = 39,089,596,962.71/223,519.67
  6. Step 6: Final answer
    x = 174,882.13

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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.