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Finding the Fourth Proportional to 310,333.68, 428,278.79 and 233,717.60

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Solution

The fourth proportional to 310,333.68, 428,278.79 and 233,717.60 is: 322,544.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,333.68 : 428,278.79 = 233,717.60 : x
  2. Step 2: Convert to fraction form
    310,333.68/428,278.79 = 233,717.60/x
  3. Step 3: Cross multiply
    310,333.68x = 428,278.79 × 233,717.60
  4. Step 4: Simplify right side
    310,333.68x = 100,096,292,584.70
  5. Step 5: Solve for x
    x = 100,096,292,584.70/310,333.68
  6. Step 6: Final answer
    x = 322,544.08

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1.5x scale

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.