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Finding the Fourth Proportional to 280,149.74, 386,624.91 and 159,302.27

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Solution

The fourth proportional to 280,149.74, 386,624.91 and 159,302.27 is: 219,847.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,149.74 : 386,624.91 = 159,302.27 : x
  2. Step 2: Convert to fraction form
    280,149.74/386,624.91 = 159,302.27/x
  3. Step 3: Cross multiply
    280,149.74x = 386,624.91 × 159,302.27
  4. Step 4: Simplify right side
    280,149.74x = 61,590,225,801.55
  5. Step 5: Solve for x
    x = 61,590,225,801.55/280,149.74
  6. Step 6: Final answer
    x = 219,847.52

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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.