Home / 211,819.77-317,575.80-99,442.17

Finding the Fourth Proportional to 211,819.77, 317,575.80 and 99,442.17

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Solution

The fourth proportional to 211,819.77, 317,575.80 and 99,442.17 is: 149,091.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,819.77 : 317,575.80 = 99,442.17 : x
  2. Step 2: Convert to fraction form
    211,819.77/317,575.80 = 99,442.17/x
  3. Step 3: Cross multiply
    211,819.77x = 317,575.80 × 99,442.17
  4. Step 4: Simplify right side
    211,819.77x = 31,580,426,691.49
  5. Step 5: Solve for x
    x = 31,580,426,691.49/211,819.77
  6. Step 6: Final answer
    x = 149,091.03

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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.