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Finding the Fourth Proportional to 303,887.10, 455,830.65 and 268,895.10

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Solution

The fourth proportional to 303,887.10, 455,830.65 and 268,895.10 is: 403,342.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,887.10 : 455,830.65 = 268,895.10 : x
  2. Step 2: Convert to fraction form
    303,887.10/455,830.65 = 268,895.10/x
  3. Step 3: Cross multiply
    303,887.10x = 455,830.65 × 268,895.10
  4. Step 4: Simplify right side
    303,887.10x = 122,570,628,214.82
  5. Step 5: Solve for x
    x = 122,570,628,214.82/303,887.10
  6. Step 6: Final answer
    x = 403,342.65

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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.