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Finding the Fourth Proportional to 257,262.01, 385,933.92 and 79,732.28

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Solution

The fourth proportional to 257,262.01, 385,933.92 and 79,732.28 is: 119,611.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,262.01 : 385,933.92 = 79,732.28 : x
  2. Step 2: Convert to fraction form
    257,262.01/385,933.92 = 79,732.28/x
  3. Step 3: Cross multiply
    257,262.01x = 385,933.92 × 79,732.28
  4. Step 4: Simplify right side
    257,262.01x = 30,771,392,036.78
  5. Step 5: Solve for x
    x = 30,771,392,036.78/257,262.01
  6. Step 6: Final answer
    x = 119,611.10

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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.