Home / 310,206.59-427,976.07-202,839.47

Finding the Fourth Proportional to 310,206.59, 427,976.07 and 202,839.47

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Solution

The fourth proportional to 310,206.59, 427,976.07 and 202,839.47 is: 279,847.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,206.59 : 427,976.07 = 202,839.47 : x
  2. Step 2: Convert to fraction form
    310,206.59/427,976.07 = 202,839.47/x
  3. Step 3: Cross multiply
    310,206.59x = 427,976.07 × 202,839.47
  4. Step 4: Simplify right side
    310,206.59x = 86,810,437,071.60
  5. Step 5: Solve for x
    x = 86,810,437,071.60/310,206.59
  6. Step 6: Final answer
    x = 279,847.18

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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.