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Finding the Fourth Proportional to 342,441.89, 472,528.40 and 197,295.15

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Solution

The fourth proportional to 342,441.89, 472,528.40 and 197,295.15 is: 272,243.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,441.89 : 472,528.40 = 197,295.15 : x
  2. Step 2: Convert to fraction form
    342,441.89/472,528.40 = 197,295.15/x
  3. Step 3: Cross multiply
    342,441.89x = 472,528.40 × 197,295.15
  4. Step 4: Simplify right side
    342,441.89x = 93,227,560,570.78
  5. Step 5: Solve for x
    x = 93,227,560,570.78/342,441.89
  6. Step 6: Final answer
    x = 272,243.45

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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.