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Finding the Fourth Proportional to 377,605.68, 521,109.72 and 207,846.96

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Solution

The fourth proportional to 377,605.68, 521,109.72 and 207,846.96 is: 286,836.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,605.68 : 521,109.72 = 207,846.96 : x
  2. Step 2: Convert to fraction form
    377,605.68/521,109.72 = 207,846.96/x
  3. Step 3: Cross multiply
    377,605.68x = 521,109.72 × 207,846.96
  4. Step 4: Simplify right side
    377,605.68x = 108,311,071,128.45
  5. Step 5: Solve for x
    x = 108,311,071,128.45/377,605.68
  6. Step 6: Final answer
    x = 286,836.45

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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.