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Finding the Fourth Proportional to 235,058.88, 324,409.94 and 138,258.12

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Solution

The fourth proportional to 235,058.88, 324,409.94 and 138,258.12 is: 190,813.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,058.88 : 324,409.94 = 138,258.12 : x
  2. Step 2: Convert to fraction form
    235,058.88/324,409.94 = 138,258.12/x
  3. Step 3: Cross multiply
    235,058.88x = 324,409.94 × 138,258.12
  4. Step 4: Simplify right side
    235,058.88x = 44,852,307,024.35
  5. Step 5: Solve for x
    x = 44,852,307,024.35/235,058.88
  6. Step 6: Final answer
    x = 190,813.08

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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.