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Finding the Fourth Proportional to 371,648.60, 512,829.36 and 226,401.68

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Solution

The fourth proportional to 371,648.60, 512,829.36 and 226,401.68 is: 312,406.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,648.60 : 512,829.36 = 226,401.68 : x
  2. Step 2: Convert to fraction form
    371,648.60/512,829.36 = 226,401.68/x
  3. Step 3: Cross multiply
    371,648.60x = 512,829.36 × 226,401.68
  4. Step 4: Simplify right side
    371,648.60x = 116,105,428,657.33
  5. Step 5: Solve for x
    x = 116,105,428,657.33/371,648.60
  6. Step 6: Final answer
    x = 312,406.47

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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.