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Finding the Fourth Proportional to 342,783.43, 513,505.55 and 236,148.55

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Solution

The fourth proportional to 342,783.43, 513,505.55 and 236,148.55 is: 353,761.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,783.43 : 513,505.55 = 236,148.55 : x
  2. Step 2: Convert to fraction form
    342,783.43/513,505.55 = 236,148.55/x
  3. Step 3: Cross multiply
    342,783.43x = 513,505.55 × 236,148.55
  4. Step 4: Simplify right side
    342,783.43x = 121,263,589,868.71
  5. Step 5: Solve for x
    x = 121,263,589,868.71/342,783.43
  6. Step 6: Final answer
    x = 353,761.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.