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Finding the Fourth Proportional to 377,562.78, 521,036.28 and 207,807.84

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Solution

The fourth proportional to 377,562.78, 521,036.28 and 207,807.84 is: 286,774.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,562.78 : 521,036.28 = 207,807.84 : x
  2. Step 2: Convert to fraction form
    377,562.78/521,036.28 = 207,807.84/x
  3. Step 3: Cross multiply
    377,562.78x = 521,036.28 × 207,807.84
  4. Step 4: Simplify right side
    377,562.78x = 108,275,423,908.44
  5. Step 5: Solve for x
    x = 108,275,423,908.44/377,562.78
  6. Step 6: Final answer
    x = 286,774.62

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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.