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Finding the Fourth Proportional to 305,886.93, 422,191.43 and 169,967.58

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Solution

The fourth proportional to 305,886.93, 422,191.43 and 169,967.58 is: 234,592.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,886.93 : 422,191.43 = 169,967.58 : x
  2. Step 2: Convert to fraction form
    305,886.93/422,191.43 = 169,967.58/x
  3. Step 3: Cross multiply
    305,886.93x = 422,191.43 × 169,967.58
  4. Step 4: Simplify right side
    305,886.93x = 71,758,855,653.84
  5. Step 5: Solve for x
    x = 71,758,855,653.84/305,886.93
  6. Step 6: Final answer
    x = 234,592.75

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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.