Home / 257,112.20-385,668.30-107,302.70

Finding the Fourth Proportional to 257,112.20, 385,668.30 and 107,302.70

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Solution

The fourth proportional to 257,112.20, 385,668.30 and 107,302.70 is: 160,954.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,112.20 : 385,668.30 = 107,302.70 : x
  2. Step 2: Convert to fraction form
    257,112.20/385,668.30 = 107,302.70/x
  3. Step 3: Cross multiply
    257,112.20x = 385,668.30 × 107,302.70
  4. Step 4: Simplify right side
    257,112.20x = 41,383,249,894.41
  5. Step 5: Solve for x
    x = 41,383,249,894.41/257,112.20
  6. Step 6: Final answer
    x = 160,954.05

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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.