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Finding the Fourth Proportional to 223,875.72, 308,812.77 and 143,274.78

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Solution

The fourth proportional to 223,875.72, 308,812.77 and 143,274.78 is: 197,632.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,875.72 : 308,812.77 = 143,274.78 : x
  2. Step 2: Convert to fraction form
    223,875.72/308,812.77 = 143,274.78/x
  3. Step 3: Cross multiply
    223,875.72x = 308,812.77 × 143,274.78
  4. Step 4: Simplify right side
    223,875.72x = 44,245,081,682.94
  5. Step 5: Solve for x
    x = 44,245,081,682.94/223,875.72
  6. Step 6: Final answer
    x = 197,632.34

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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.