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Finding the Fourth Proportional to 171,680.40, 257,520.60 and 53,363.70

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Solution

The fourth proportional to 171,680.40, 257,520.60 and 53,363.70 is: 80,045.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,680.40 : 257,520.60 = 53,363.70 : x
  2. Step 2: Convert to fraction form
    171,680.40/257,520.60 = 53,363.70/x
  3. Step 3: Cross multiply
    171,680.40x = 257,520.60 × 53,363.70
  4. Step 4: Simplify right side
    171,680.40x = 13,742,252,042.22
  5. Step 5: Solve for x
    x = 13,742,252,042.22/171,680.40
  6. Step 6: Final answer
    x = 80,045.55

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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.