Home / 257,244.04-385,956.78-79,795.72

Finding the Fourth Proportional to 257,244.04, 385,956.78 and 79,795.72

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Solution

The fourth proportional to 257,244.04, 385,956.78 and 79,795.72 is: 119,721.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,244.04 : 385,956.78 = 79,795.72 : x
  2. Step 2: Convert to fraction form
    257,244.04/385,956.78 = 79,795.72/x
  3. Step 3: Cross multiply
    257,244.04x = 385,956.78 × 79,795.72
  4. Step 4: Simplify right side
    257,244.04x = 30,797,699,148.98
  5. Step 5: Solve for x
    x = 30,797,699,148.98/257,244.04
  6. Step 6: Final answer
    x = 119,721.72

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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.