Home / 310,843.47-428,979.75-183,516.33

Finding the Fourth Proportional to 310,843.47, 428,979.75 and 183,516.33

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Solution

The fourth proportional to 310,843.47, 428,979.75 and 183,516.33 is: 253,261.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,843.47 : 428,979.75 = 183,516.33 : x
  2. Step 2: Convert to fraction form
    310,843.47/428,979.75 = 183,516.33/x
  3. Step 3: Cross multiply
    310,843.47x = 428,979.75 × 183,516.33
  4. Step 4: Simplify right side
    310,843.47x = 78,724,789,364.32
  5. Step 5: Solve for x
    x = 78,724,789,364.32/310,843.47
  6. Step 6: Final answer
    x = 253,261.84

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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.