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Finding the Fourth Proportional to 332,795.79, 458,290.71 and 289,170

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Solution

The fourth proportional to 332,795.79, 458,290.71 and 289,170 is: 398,213.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,795.79 : 458,290.71 = 289,170 : x
  2. Step 2: Convert to fraction form
    332,795.79/458,290.71 = 289,170/x
  3. Step 3: Cross multiply
    332,795.79x = 458,290.71 × 289,170
  4. Step 4: Simplify right side
    332,795.79x = 132,523,924,610.70
  5. Step 5: Solve for x
    x = 132,523,924,610.70/332,795.79
  6. Step 6: Final answer
    x = 398,213.95

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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.