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Finding the Fourth Proportional to 309,499.44, 427,295.52 and 202,248.96

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Solution

The fourth proportional to 309,499.44, 427,295.52 and 202,248.96 is: 279,225.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,499.44 : 427,295.52 = 202,248.96 : x
  2. Step 2: Convert to fraction form
    309,499.44/427,295.52 = 202,248.96/x
  3. Step 3: Cross multiply
    309,499.44x = 427,295.52 × 202,248.96
  4. Step 4: Simplify right side
    309,499.44x = 86,420,074,532.66
  5. Step 5: Solve for x
    x = 86,420,074,532.66/309,499.44
  6. Step 6: Final answer
    x = 279,225.30

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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.