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Finding the Fourth Proportional to 280,058.92, 386,465.96 and 159,183.44

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Solution

The fourth proportional to 280,058.92, 386,465.96 and 159,183.44 is: 219,664.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,058.92 : 386,465.96 = 159,183.44 : x
  2. Step 2: Convert to fraction form
    280,058.92/386,465.96 = 159,183.44/x
  3. Step 3: Cross multiply
    280,058.92x = 386,465.96 × 159,183.44
  4. Step 4: Simplify right side
    280,058.92x = 61,518,980,955.70
  5. Step 5: Solve for x
    x = 61,518,980,955.70/280,058.92
  6. Step 6: Final answer
    x = 219,664.42

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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.