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Finding the Fourth Proportional to 287,246.59, 396,416.00 and 159,919.39

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Solution

The fourth proportional to 287,246.59, 396,416.00 and 159,919.39 is: 220,697.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,246.59 : 396,416.00 = 159,919.39 : x
  2. Step 2: Convert to fraction form
    287,246.59/396,416.00 = 159,919.39/x
  3. Step 3: Cross multiply
    287,246.59x = 396,416.00 × 159,919.39
  4. Step 4: Simplify right side
    287,246.59x = 63,394,604,106.64
  5. Step 5: Solve for x
    x = 63,394,604,106.64/287,246.59
  6. Step 6: Final answer
    x = 220,697.50

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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.