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Finding the Fourth Proportional to 438,802.34, 658,073.09 and 186,079.10

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Solution

The fourth proportional to 438,802.34, 658,073.09 and 186,079.10 is: 279,063.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,802.34 : 658,073.09 = 186,079.10 : x
  2. Step 2: Convert to fraction form
    438,802.34/658,073.09 = 186,079.10/x
  3. Step 3: Cross multiply
    438,802.34x = 658,073.09 × 186,079.10
  4. Step 4: Simplify right side
    438,802.34x = 122,453,644,100.66
  5. Step 5: Solve for x
    x = 122,453,644,100.66/438,802.34
  6. Step 6: Final answer
    x = 279,063.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.