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Finding the Fourth Proportional to 280,230.94, 386,727.23 and 159,389.62

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Solution

The fourth proportional to 280,230.94, 386,727.23 and 159,389.62 is: 219,962.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,230.94 : 386,727.23 = 159,389.62 : x
  2. Step 2: Convert to fraction form
    280,230.94/386,727.23 = 159,389.62/x
  3. Step 3: Cross multiply
    280,230.94x = 386,727.23 × 159,389.62
  4. Step 4: Simplify right side
    280,230.94x = 61,640,306,233.35
  5. Step 5: Solve for x
    x = 61,640,306,233.35/280,230.94
  6. Step 6: Final answer
    x = 219,962.53

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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.