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Finding the Fourth Proportional to 310,314.36, 428,282.46 and 183,003.96

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Solution

The fourth proportional to 310,314.36, 428,282.46 and 183,003.96 is: 252,574.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,314.36 : 428,282.46 = 183,003.96 : x
  2. Step 2: Convert to fraction form
    310,314.36/428,282.46 = 183,003.96/x
  3. Step 3: Cross multiply
    310,314.36x = 428,282.46 × 183,003.96
  4. Step 4: Simplify right side
    310,314.36x = 78,377,386,178.54
  5. Step 5: Solve for x
    x = 78,377,386,178.54/310,314.36
  6. Step 6: Final answer
    x = 252,574.15

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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.