Home / 211,423.86-317,135.52-51,499.71

Finding the Fourth Proportional to 211,423.86, 317,135.52 and 51,499.71

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Solution

The fourth proportional to 211,423.86, 317,135.52 and 51,499.71 is: 77,249.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,423.86 : 317,135.52 = 51,499.71 : x
  2. Step 2: Convert to fraction form
    211,423.86/317,135.52 = 51,499.71/x
  3. Step 3: Cross multiply
    211,423.86x = 317,135.52 × 51,499.71
  4. Step 4: Simplify right side
    211,423.86x = 16,332,387,310.70
  5. Step 5: Solve for x
    x = 16,332,387,310.70/211,423.86
  6. Step 6: Final answer
    x = 77,249.50

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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.