Home / 236,712.78-326,658.58-129,283.25

Finding the Fourth Proportional to 236,712.78, 326,658.58 and 129,283.25

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Solution

The fourth proportional to 236,712.78, 326,658.58 and 129,283.25 is: 178,408.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,712.78 : 326,658.58 = 129,283.25 : x
  2. Step 2: Convert to fraction form
    236,712.78/326,658.58 = 129,283.25/x
  3. Step 3: Cross multiply
    236,712.78x = 326,658.58 × 129,283.25
  4. Step 4: Simplify right side
    236,712.78x = 42,231,480,906.28
  5. Step 5: Solve for x
    x = 42,231,480,906.28/236,712.78
  6. Step 6: Final answer
    x = 178,408.12

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1.5x scale

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.