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Finding the Fourth Proportional to 379,752.64, 524,072.64 and 245,616.64

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Solution

The fourth proportional to 379,752.64, 524,072.64 and 245,616.64 is: 338,960.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,752.64 : 524,072.64 = 245,616.64 : x
  2. Step 2: Convert to fraction form
    379,752.64/524,072.64 = 245,616.64/x
  3. Step 3: Cross multiply
    379,752.64x = 524,072.64 × 245,616.64
  4. Step 4: Simplify right side
    379,752.64x = 128,720,960,952.73
  5. Step 5: Solve for x
    x = 128,720,960,952.73/379,752.64
  6. Step 6: Final answer
    x = 338,960.02

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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.