Home / 268,058.12-402,076.38-68,383.40

Finding the Fourth Proportional to 268,058.12, 402,076.38 and 68,383.40

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Solution

The fourth proportional to 268,058.12, 402,076.38 and 68,383.40 is: 102,572.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,058.12 : 402,076.38 = 68,383.40 : x
  2. Step 2: Convert to fraction form
    268,058.12/402,076.38 = 68,383.40/x
  3. Step 3: Cross multiply
    268,058.12x = 402,076.38 × 68,383.40
  4. Step 4: Simplify right side
    268,058.12x = 27,495,349,924.09
  5. Step 5: Solve for x
    x = 27,495,349,924.09/268,058.12
  6. Step 6: Final answer
    x = 102,572.34

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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.