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Finding the Fourth Proportional to 303,710.20, 455,241.64 and 228,598.08

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Solution

The fourth proportional to 303,710.20, 455,241.64 and 228,598.08 is: 342,653.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,710.20 : 455,241.64 = 228,598.08 : x
  2. Step 2: Convert to fraction form
    303,710.20/455,241.64 = 228,598.08/x
  3. Step 3: Cross multiply
    303,710.20x = 455,241.64 × 228,598.08
  4. Step 4: Simplify right side
    303,710.20x = 104,067,364,840.05
  5. Step 5: Solve for x
    x = 104,067,364,840.05/303,710.20
  6. Step 6: Final answer
    x = 342,653.51

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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.