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Finding the Fourth Proportional to 303,651.56, 455,114.95 and 141,327.17

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Solution

The fourth proportional to 303,651.56, 455,114.95 and 141,327.17 is: 211,822.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,651.56 : 455,114.95 = 141,327.17 : x
  2. Step 2: Convert to fraction form
    303,651.56/455,114.95 = 141,327.17/x
  3. Step 3: Cross multiply
    303,651.56x = 455,114.95 × 141,327.17
  4. Step 4: Simplify right side
    303,651.56x = 64,320,109,045.98
  5. Step 5: Solve for x
    x = 64,320,109,045.98/303,651.56
  6. Step 6: Final answer
    x = 211,822.10

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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.