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Finding the Fourth Proportional to 342,503.45, 472,654.09 and 191,600.45

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Solution

The fourth proportional to 342,503.45, 472,654.09 and 191,600.45 is: 264,408.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,503.45 : 472,654.09 = 191,600.45 : x
  2. Step 2: Convert to fraction form
    342,503.45/472,654.09 = 191,600.45/x
  3. Step 3: Cross multiply
    342,503.45x = 472,654.09 × 191,600.45
  4. Step 4: Simplify right side
    342,503.45x = 90,560,736,338.34
  5. Step 5: Solve for x
    x = 90,560,736,338.34/342,503.45
  6. Step 6: Final answer
    x = 264,408.25

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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.