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Finding the Fourth Proportional to 285,466.68, 393,915.15 and 170,722.54

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Solution

The fourth proportional to 285,466.68, 393,915.15 and 170,722.54 is: 235,579.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,466.68 : 393,915.15 = 170,722.54 : x
  2. Step 2: Convert to fraction form
    285,466.68/393,915.15 = 170,722.54/x
  3. Step 3: Cross multiply
    285,466.68x = 393,915.15 × 170,722.54
  4. Step 4: Simplify right side
    285,466.68x = 67,250,193,229.10
  5. Step 5: Solve for x
    x = 67,250,193,229.10/285,466.68
  6. Step 6: Final answer
    x = 235,579.83

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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.