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Finding the Fourth Proportional to 220,408.83, 304,167.60 and 128,525.63

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Solution

The fourth proportional to 220,408.83, 304,167.60 and 128,525.63 is: 177,367.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,408.83 : 304,167.60 = 128,525.63 : x
  2. Step 2: Convert to fraction form
    220,408.83/304,167.60 = 128,525.63/x
  3. Step 3: Cross multiply
    220,408.83x = 304,167.60 × 128,525.63
  4. Step 4: Simplify right side
    220,408.83x = 39,093,330,894.75
  5. Step 5: Solve for x
    x = 39,093,330,894.75/220,408.83
  6. Step 6: Final answer
    x = 177,367.35

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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.