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Finding the Fourth Proportional to 280,461.77, 387,032.36 and 159,600.54

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Solution

The fourth proportional to 280,461.77, 387,032.36 and 159,600.54 is: 220,245.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,461.77 : 387,032.36 = 159,600.54 : x
  2. Step 2: Convert to fraction form
    280,461.77/387,032.36 = 159,600.54/x
  3. Step 3: Cross multiply
    280,461.77x = 387,032.36 × 159,600.54
  4. Step 4: Simplify right side
    280,461.77x = 61,770,572,855.47
  5. Step 5: Solve for x
    x = 61,770,572,855.47/280,461.77
  6. Step 6: Final answer
    x = 220,245.97

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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.