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Finding the Fourth Proportional to 303,618.60, 455,427.90 and 269,501.40

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Solution

The fourth proportional to 303,618.60, 455,427.90 and 269,501.40 is: 404,252.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,618.60 : 455,427.90 = 269,501.40 : x
  2. Step 2: Convert to fraction form
    303,618.60/455,427.90 = 269,501.40/x
  3. Step 3: Cross multiply
    303,618.60x = 455,427.90 × 269,501.40
  4. Step 4: Simplify right side
    303,618.60x = 122,738,456,649.06
  5. Step 5: Solve for x
    x = 122,738,456,649.06/303,618.60
  6. Step 6: Final answer
    x = 404,252.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.