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Finding the Fourth Proportional to 304,446.60, 455,795.10 and 272,953.80

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Solution

The fourth proportional to 304,446.60, 455,795.10 and 272,953.80 is: 408,646.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,446.60 : 455,795.10 = 272,953.80 : x
  2. Step 2: Convert to fraction form
    304,446.60/455,795.10 = 272,953.80/x
  3. Step 3: Cross multiply
    304,446.60x = 455,795.10 × 272,953.80
  4. Step 4: Simplify right side
    304,446.60x = 124,411,004,566.38
  5. Step 5: Solve for x
    x = 124,411,004,566.38/304,446.60
  6. Step 6: Final answer
    x = 408,646.39

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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.