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Finding the Fourth Proportional to 310,203.59, 427,971.93 and 202,836.47

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Solution

The fourth proportional to 310,203.59, 427,971.93 and 202,836.47 is: 279,843.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,203.59 : 427,971.93 = 202,836.47 : x
  2. Step 2: Convert to fraction form
    310,203.59/427,971.93 = 202,836.47/x
  3. Step 3: Cross multiply
    310,203.59x = 427,971.93 × 202,836.47
  4. Step 4: Simplify right side
    310,203.59x = 86,808,315,540.29
  5. Step 5: Solve for x
    x = 86,808,315,540.29/310,203.59
  6. Step 6: Final answer
    x = 279,843.04

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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.