Home / 207,126.40-308,208.80-206,426.56

Finding the Fourth Proportional to 207,126.40, 308,208.80 and 206,426.56

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Solution

The fourth proportional to 207,126.40, 308,208.80 and 206,426.56 is: 307,167.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,126.40 : 308,208.80 = 206,426.56 : x
  2. Step 2: Convert to fraction form
    207,126.40/308,208.80 = 206,426.56/x
  3. Step 3: Cross multiply
    207,126.40x = 308,208.80 × 206,426.56
  4. Step 4: Simplify right side
    207,126.40x = 63,622,482,345.73
  5. Step 5: Solve for x
    x = 63,622,482,345.73/207,126.40
  6. Step 6: Final answer
    x = 307,167.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.