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Finding the Fourth Proportional to 243,217.62, 364,515.39 and 102,783.06

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Solution

The fourth proportional to 243,217.62, 364,515.39 and 102,783.06 is: 154,043.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,217.62 : 364,515.39 = 102,783.06 : x
  2. Step 2: Convert to fraction form
    243,217.62/364,515.39 = 102,783.06/x
  3. Step 3: Cross multiply
    243,217.62x = 364,515.39 × 102,783.06
  4. Step 4: Simplify right side
    243,217.62x = 37,466,007,201.29
  5. Step 5: Solve for x
    x = 37,466,007,201.29/243,217.62
  6. Step 6: Final answer
    x = 154,043.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.