Home / 280,113.94-386,541.86-159,238.44

Finding the Fourth Proportional to 280,113.94, 386,541.86 and 159,238.44

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Solution

The fourth proportional to 280,113.94, 386,541.86 and 159,238.44 is: 219,740.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,113.94 : 386,541.86 = 159,238.44 : x
  2. Step 2: Convert to fraction form
    280,113.94/386,541.86 = 159,238.44/x
  3. Step 3: Cross multiply
    280,113.94x = 386,541.86 × 159,238.44
  4. Step 4: Simplify right side
    280,113.94x = 61,552,322,781.10
  5. Step 5: Solve for x
    x = 61,552,322,781.10/280,113.94
  6. Step 6: Final answer
    x = 219,740.31

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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.