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Finding the Fourth Proportional to 664,323.30, 996,290.55 and 237,809.70

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Solution

The fourth proportional to 664,323.30, 996,290.55 and 237,809.70 is: 356,644.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,323.30 : 996,290.55 = 237,809.70 : x
  2. Step 2: Convert to fraction form
    664,323.30/996,290.55 = 237,809.70/x
  3. Step 3: Cross multiply
    664,323.30x = 996,290.55 × 237,809.70
  4. Step 4: Simplify right side
    664,323.30x = 236,927,556,808.34
  5. Step 5: Solve for x
    x = 236,927,556,808.34/664,323.30
  6. Step 6: Final answer
    x = 356,644.96

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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.