Home / 211,464.18-317,262.05-69,310.71

Finding the Fourth Proportional to 211,464.18, 317,262.05 and 69,310.71

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Solution

The fourth proportional to 211,464.18, 317,262.05 and 69,310.71 is: 103,987.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,464.18 : 317,262.05 = 69,310.71 : x
  2. Step 2: Convert to fraction form
    211,464.18/317,262.05 = 69,310.71/x
  3. Step 3: Cross multiply
    211,464.18x = 317,262.05 × 69,310.71
  4. Step 4: Simplify right side
    211,464.18x = 21,989,657,941.56
  5. Step 5: Solve for x
    x = 21,989,657,941.56/211,464.18
  6. Step 6: Final answer
    x = 103,987.63

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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.