Home / 377,842.72-521,402.16-208,043.68

Finding the Fourth Proportional to 377,842.72, 521,402.16 and 208,043.68

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Solution

The fourth proportional to 377,842.72, 521,402.16 and 208,043.68 is: 287,088.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,842.72 : 521,402.16 = 208,043.68 : x
  2. Step 2: Convert to fraction form
    377,842.72/521,402.16 = 208,043.68/x
  3. Step 3: Cross multiply
    377,842.72x = 521,402.16 × 208,043.68
  4. Step 4: Simplify right side
    377,842.72x = 108,474,424,126.35
  5. Step 5: Solve for x
    x = 108,474,424,126.35/377,842.72
  6. Step 6: Final answer
    x = 287,088.83

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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.