Home / 211,650.39-317,579.37-99,339.74

Finding the Fourth Proportional to 211,650.39, 317,579.37 and 99,339.74

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Solution

The fourth proportional to 211,650.39, 317,579.37 and 99,339.74 is: 149,058.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,650.39 : 317,579.37 = 99,339.74 : x
  2. Step 2: Convert to fraction form
    211,650.39/317,579.37 = 99,339.74/x
  3. Step 3: Cross multiply
    211,650.39x = 317,579.37 × 99,339.74
  4. Step 4: Simplify right side
    211,650.39x = 31,548,251,275.67
  5. Step 5: Solve for x
    x = 31,548,251,275.67/211,650.39
  6. Step 6: Final answer
    x = 149,058.32

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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.