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Finding the Fourth Proportional to 280,364.33, 386,889.26 and 159,494.24

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Solution

The fourth proportional to 280,364.33, 386,889.26 and 159,494.24 is: 220,094.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,364.33 : 386,889.26 = 159,494.24 : x
  2. Step 2: Convert to fraction form
    280,364.33/386,889.26 = 159,494.24/x
  3. Step 3: Cross multiply
    280,364.33x = 386,889.26 × 159,494.24
  4. Step 4: Simplify right side
    280,364.33x = 61,706,605,755.94
  5. Step 5: Solve for x
    x = 61,706,605,755.94/280,364.33
  6. Step 6: Final answer
    x = 220,094.36

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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.