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Finding the Fourth Proportional to 340,564.26, 469,978.78 and 197,407.34

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Solution

The fourth proportional to 340,564.26, 469,978.78 and 197,407.34 is: 272,422.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,564.26 : 469,978.78 = 197,407.34 : x
  2. Step 2: Convert to fraction form
    340,564.26/469,978.78 = 197,407.34/x
  3. Step 3: Cross multiply
    340,564.26x = 469,978.78 × 197,407.34
  4. Step 4: Simplify right side
    340,564.26x = 92,777,258,466.35
  5. Step 5: Solve for x
    x = 92,777,258,466.35/340,564.26
  6. Step 6: Final answer
    x = 272,422.18

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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.