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Finding the Fourth Proportional to 170,152.72, 255,209.64 and 45,503.44

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Solution

The fourth proportional to 170,152.72, 255,209.64 and 45,503.44 is: 68,249.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,152.72 : 255,209.64 = 45,503.44 : x
  2. Step 2: Convert to fraction form
    170,152.72/255,209.64 = 45,503.44/x
  3. Step 3: Cross multiply
    170,152.72x = 255,209.64 × 45,503.44
  4. Step 4: Simplify right side
    170,152.72x = 11,612,916,541.16
  5. Step 5: Solve for x
    x = 11,612,916,541.16/170,152.72
  6. Step 6: Final answer
    x = 68,249.96

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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.