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Finding the Fourth Proportional to 280,273.62, 386,703.29 and 159,395.39

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Solution

The fourth proportional to 280,273.62, 386,703.29 and 159,395.39 is: 219,923.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,273.62 : 386,703.29 = 159,395.39 : x
  2. Step 2: Convert to fraction form
    280,273.62/386,703.29 = 159,395.39/x
  3. Step 3: Cross multiply
    280,273.62x = 386,703.29 × 159,395.39
  4. Step 4: Simplify right side
    280,273.62x = 61,638,723,365.85
  5. Step 5: Solve for x
    x = 61,638,723,365.85/280,273.62
  6. Step 6: Final answer
    x = 219,923.39

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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.