Home / 370,668.77-511,517.35-209,518.17

Finding the Fourth Proportional to 370,668.77, 511,517.35 and 209,518.17

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Solution

The fourth proportional to 370,668.77, 511,517.35 and 209,518.17 is: 289,131.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,668.77 : 511,517.35 = 209,518.17 : x
  2. Step 2: Convert to fraction form
    370,668.77/511,517.35 = 209,518.17/x
  3. Step 3: Cross multiply
    370,668.77x = 511,517.35 × 209,518.17
  4. Step 4: Simplify right side
    370,668.77x = 107,172,179,095.25
  5. Step 5: Solve for x
    x = 107,172,179,095.25/370,668.77
  6. Step 6: Final answer
    x = 289,131.94

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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.