Home / 340,235.90-469,518.57-212,981.66

Finding the Fourth Proportional to 340,235.90, 469,518.57 and 212,981.66

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Solution

The fourth proportional to 340,235.90, 469,518.57 and 212,981.66 is: 293,910.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,235.90 : 469,518.57 = 212,981.66 : x
  2. Step 2: Convert to fraction form
    340,235.90/469,518.57 = 212,981.66/x
  3. Step 3: Cross multiply
    340,235.90x = 469,518.57 × 212,981.66
  4. Step 4: Simplify right side
    340,235.90x = 99,998,844,439.43
  5. Step 5: Solve for x
    x = 99,998,844,439.43/340,235.90
  6. Step 6: Final answer
    x = 293,910.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.