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Finding the Fourth Proportional to 300,775.92, 415,052.88 and 164,782.80

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Solution

The fourth proportional to 300,775.92, 415,052.88 and 164,782.80 is: 227,390.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,775.92 : 415,052.88 = 164,782.80 : x
  2. Step 2: Convert to fraction form
    300,775.92/415,052.88 = 164,782.80/x
  3. Step 3: Cross multiply
    300,775.92x = 415,052.88 × 164,782.80
  4. Step 4: Simplify right side
    300,775.92x = 68,393,575,714.46
  5. Step 5: Solve for x
    x = 68,393,575,714.46/300,775.92
  6. Step 6: Final answer
    x = 227,390.46

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1.5x scale

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.