Home / 211,569.82-317,355.81-71,329.66

Finding the Fourth Proportional to 211,569.82, 317,355.81 and 71,329.66

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Solution

The fourth proportional to 211,569.82, 317,355.81 and 71,329.66 is: 106,994.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,569.82 : 317,355.81 = 71,329.66 : x
  2. Step 2: Convert to fraction form
    211,569.82/317,355.81 = 71,329.66/x
  3. Step 3: Cross multiply
    211,569.82x = 317,355.81 × 71,329.66
  4. Step 4: Simplify right side
    211,569.82x = 22,636,882,026.32
  5. Step 5: Solve for x
    x = 22,636,882,026.32/211,569.82
  6. Step 6: Final answer
    x = 106,994.85

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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.