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Finding the Fourth Proportional to 328,654.36, 453,819.62 and 208,008.52

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Solution

The fourth proportional to 328,654.36, 453,819.62 and 208,008.52 is: 287,226.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,654.36 : 453,819.62 = 208,008.52 : x
  2. Step 2: Convert to fraction form
    328,654.36/453,819.62 = 208,008.52/x
  3. Step 3: Cross multiply
    328,654.36x = 453,819.62 × 208,008.52
  4. Step 4: Simplify right side
    328,654.36x = 94,398,347,503.16
  5. Step 5: Solve for x
    x = 94,398,347,503.16/328,654.36
  6. Step 6: Final answer
    x = 287,226.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.