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Finding the Fourth Proportional to 467,080, 644,572.96 and 255,112

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Solution

The fourth proportional to 467,080, 644,572.96 and 255,112 is: 352,055.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,080 : 644,572.96 = 255,112 : x
  2. Step 2: Convert to fraction form
    467,080/644,572.96 = 255,112/x
  3. Step 3: Cross multiply
    467,080x = 644,572.96 × 255,112
  4. Step 4: Simplify right side
    467,080x = 164,438,296,971.52
  5. Step 5: Solve for x
    x = 164,438,296,971.52/467,080
  6. Step 6: Final answer
    x = 352,055.96

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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.