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Finding the Fourth Proportional to 285,255.92, 428,143.08 and 152,249.60

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Solution

The fourth proportional to 285,255.92, 428,143.08 and 152,249.60 is: 228,512.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,255.92 : 428,143.08 = 152,249.60 : x
  2. Step 2: Convert to fraction form
    285,255.92/428,143.08 = 152,249.60/x
  3. Step 3: Cross multiply
    285,255.92x = 428,143.08 × 152,249.60
  4. Step 4: Simplify right side
    285,255.92x = 65,184,612,672.77
  5. Step 5: Solve for x
    x = 65,184,612,672.77/285,255.92
  6. Step 6: Final answer
    x = 228,512.74

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1.5x scale

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.