Home / 377,685.36-521,218.50-205,609.62

Finding the Fourth Proportional to 377,685.36, 521,218.50 and 205,609.62

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Solution

The fourth proportional to 377,685.36, 521,218.50 and 205,609.62 is: 283,748.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,685.36 : 521,218.50 = 205,609.62 : x
  2. Step 2: Convert to fraction form
    377,685.36/521,218.50 = 205,609.62/x
  3. Step 3: Cross multiply
    377,685.36x = 521,218.50 × 205,609.62
  4. Step 4: Simplify right side
    377,685.36x = 107,167,537,721.97
  5. Step 5: Solve for x
    x = 107,167,537,721.97/377,685.36
  6. Step 6: Final answer
    x = 283,748.19

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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.