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Finding the Fourth Proportional to 223,363.59, 308,313.59 and 143,007.54

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Solution

The fourth proportional to 223,363.59, 308,313.59 and 143,007.54 is: 197,396.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,363.59 : 308,313.59 = 143,007.54 : x
  2. Step 2: Convert to fraction form
    223,363.59/308,313.59 = 143,007.54/x
  3. Step 3: Cross multiply
    223,363.59x = 308,313.59 × 143,007.54
  4. Step 4: Simplify right side
    223,363.59x = 44,091,167,339.43
  5. Step 5: Solve for x
    x = 44,091,167,339.43/223,363.59
  6. Step 6: Final answer
    x = 197,396.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.