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Finding the Fourth Proportional to 285,058.62, 427,449.51 and 107,579.43

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Solution

The fourth proportional to 285,058.62, 427,449.51 and 107,579.43 is: 161,316.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,058.62 : 427,449.51 = 107,579.43 : x
  2. Step 2: Convert to fraction form
    285,058.62/427,449.51 = 107,579.43/x
  3. Step 3: Cross multiply
    285,058.62x = 427,449.51 × 107,579.43
  4. Step 4: Simplify right side
    285,058.62x = 45,984,774,639.58
  5. Step 5: Solve for x
    x = 45,984,774,639.58/285,058.62
  6. Step 6: Final answer
    x = 161,316.91

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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.