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Finding the Fourth Proportional to 402,654.65, 603,739.58 and 177,900.30

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Solution

The fourth proportional to 402,654.65, 603,739.58 and 177,900.30 is: 266,743.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,654.65 : 603,739.58 = 177,900.30 : x
  2. Step 2: Convert to fraction form
    402,654.65/603,739.58 = 177,900.30/x
  3. Step 3: Cross multiply
    402,654.65x = 603,739.58 × 177,900.30
  4. Step 4: Simplify right side
    402,654.65x = 107,405,451,514.37
  5. Step 5: Solve for x
    x = 107,405,451,514.37/402,654.65
  6. Step 6: Final answer
    x = 266,743.36

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1.5x scale

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.