Home / 211,360.12-317,035.56-51,436.78

Finding the Fourth Proportional to 211,360.12, 317,035.56 and 51,436.78

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Solution

The fourth proportional to 211,360.12, 317,035.56 and 51,436.78 is: 77,154.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,360.12 : 317,035.56 = 51,436.78 : x
  2. Step 2: Convert to fraction form
    211,360.12/317,035.56 = 51,436.78/x
  3. Step 3: Cross multiply
    211,360.12x = 317,035.56 × 51,436.78
  4. Step 4: Simplify right side
    211,360.12x = 16,307,288,351.90
  5. Step 5: Solve for x
    x = 16,307,288,351.90/211,360.12
  6. Step 6: Final answer
    x = 77,154.05

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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.