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Finding the Fourth Proportional to 304,813.63, 455,366.52 and 197,321.89

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Solution

The fourth proportional to 304,813.63, 455,366.52 and 197,321.89 is: 294,782.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,813.63 : 455,366.52 = 197,321.89 : x
  2. Step 2: Convert to fraction form
    304,813.63/455,366.52 = 197,321.89/x
  3. Step 3: Cross multiply
    304,813.63x = 455,366.52 × 197,321.89
  4. Step 4: Simplify right side
    304,813.63x = 89,853,784,699.31
  5. Step 5: Solve for x
    x = 89,853,784,699.31/304,813.63
  6. Step 6: Final answer
    x = 294,782.70

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.