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Finding the Fourth Proportional to 223,008.45, 307,749.04 and 121,034.08

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Solution

The fourth proportional to 223,008.45, 307,749.04 and 121,034.08 is: 167,025.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,008.45 : 307,749.04 = 121,034.08 : x
  2. Step 2: Convert to fraction form
    223,008.45/307,749.04 = 121,034.08/x
  3. Step 3: Cross multiply
    223,008.45x = 307,749.04 × 121,034.08
  4. Step 4: Simplify right side
    223,008.45x = 37,248,121,927.28
  5. Step 5: Solve for x
    x = 37,248,121,927.28/223,008.45
  6. Step 6: Final answer
    x = 167,025.61

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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.