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Finding the Fourth Proportional to 328,514.80, 492,772.20 and 262,084.68

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Solution

The fourth proportional to 328,514.80, 492,772.20 and 262,084.68 is: 393,127.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,514.80 : 492,772.20 = 262,084.68 : x
  2. Step 2: Convert to fraction form
    328,514.80/492,772.20 = 262,084.68/x
  3. Step 3: Cross multiply
    328,514.80x = 492,772.20 × 262,084.68
  4. Step 4: Simplify right side
    328,514.80x = 129,148,044,349.90
  5. Step 5: Solve for x
    x = 129,148,044,349.90/328,514.80
  6. Step 6: Final answer
    x = 393,127.02

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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.