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Finding the Fourth Proportional to 342,364.36, 472,487.70 and 191,509.96

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Solution

The fourth proportional to 342,364.36, 472,487.70 and 191,509.96 is: 264,297.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,364.36 : 472,487.70 = 191,509.96 : x
  2. Step 2: Convert to fraction form
    342,364.36/472,487.70 = 191,509.96/x
  3. Step 3: Cross multiply
    342,364.36x = 472,487.70 × 191,509.96
  4. Step 4: Simplify right side
    342,364.36x = 90,486,100,527.49
  5. Step 5: Solve for x
    x = 90,486,100,527.49/342,364.36
  6. Step 6: Final answer
    x = 264,297.66

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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.