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Finding the Fourth Proportional to 280,149.48, 386,624.57 and 159,302.02

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Solution

The fourth proportional to 280,149.48, 386,624.57 and 159,302.02 is: 219,847.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,149.48 : 386,624.57 = 159,302.02 : x
  2. Step 2: Convert to fraction form
    280,149.48/386,624.57 = 159,302.02/x
  3. Step 3: Cross multiply
    280,149.48x = 386,624.57 × 159,302.02
  4. Step 4: Simplify right side
    280,149.48x = 61,590,074,982.63
  5. Step 5: Solve for x
    x = 61,590,074,982.63/280,149.48
  6. Step 6: Final answer
    x = 219,847.19

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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.