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Finding the Fourth Proportional to 252,783.84, 348,860.07 and 145,387.56

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Solution

The fourth proportional to 252,783.84, 348,860.07 and 145,387.56 is: 200,645.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,783.84 : 348,860.07 = 145,387.56 : x
  2. Step 2: Convert to fraction form
    252,783.84/348,860.07 = 145,387.56/x
  3. Step 3: Cross multiply
    252,783.84x = 348,860.07 × 145,387.56
  4. Step 4: Simplify right side
    252,783.84x = 50,719,914,358.73
  5. Step 5: Solve for x
    x = 50,719,914,358.73/252,783.84
  6. Step 6: Final answer
    x = 200,645.40

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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.