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Finding the Fourth Proportional to 155,110.20, 217,449.53 and 155,110.20

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Solution

The fourth proportional to 155,110.20, 217,449.53 and 155,110.20 is: 217,449.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,110.20 : 217,449.53 = 155,110.20 : x
  2. Step 2: Convert to fraction form
    155,110.20/217,449.53 = 155,110.20/x
  3. Step 3: Cross multiply
    155,110.20x = 217,449.53 × 155,110.20
  4. Step 4: Simplify right side
    155,110.20x = 33,728,640,088.21
  5. Step 5: Solve for x
    x = 33,728,640,088.21/155,110.20
  6. Step 6: Final answer
    x = 217,449.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.