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Finding the Fourth Proportional to 235,280.70, 352,921.05 and 219,728.70

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Solution

The fourth proportional to 235,280.70, 352,921.05 and 219,728.70 is: 329,593.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,280.70 : 352,921.05 = 219,728.70 : x
  2. Step 2: Convert to fraction form
    235,280.70/352,921.05 = 219,728.70/x
  3. Step 3: Cross multiply
    235,280.70x = 352,921.05 × 219,728.70
  4. Step 4: Simplify right side
    235,280.70x = 77,546,883,519.14
  5. Step 5: Solve for x
    x = 77,546,883,519.14/235,280.70
  6. Step 6: Final answer
    x = 329,593.05

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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.