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Finding the Fourth Proportional to 223,968.79, 309,076.94 and 123,366.79

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Solution

The fourth proportional to 223,968.79, 309,076.94 and 123,366.79 is: 170,246.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,968.79 : 309,076.94 = 123,366.79 : x
  2. Step 2: Convert to fraction form
    223,968.79/309,076.94 = 123,366.79/x
  3. Step 3: Cross multiply
    223,968.79x = 309,076.94 × 123,366.79
  4. Step 4: Simplify right side
    223,968.79x = 38,129,827,788.60
  5. Step 5: Solve for x
    x = 38,129,827,788.60/223,968.79
  6. Step 6: Final answer
    x = 170,246.17

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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.