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Finding the Fourth Proportional to 342,297.12, 472,370.94 and 191,394.12

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Solution

The fourth proportional to 342,297.12, 472,370.94 and 191,394.12 is: 264,124.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,297.12 : 472,370.94 = 191,394.12 : x
  2. Step 2: Convert to fraction form
    342,297.12/472,370.94 = 191,394.12/x
  3. Step 3: Cross multiply
    342,297.12x = 472,370.94 × 191,394.12
  4. Step 4: Simplify right side
    342,297.12x = 90,409,020,374.87
  5. Step 5: Solve for x
    x = 90,409,020,374.87/342,297.12
  6. Step 6: Final answer
    x = 264,124.40

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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.