Home / 377,829.45-521,397.15-205,749.47

Finding the Fourth Proportional to 377,829.45, 521,397.15 and 205,749.47

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Solution

The fourth proportional to 377,829.45, 521,397.15 and 205,749.47 is: 283,930.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,829.45 : 521,397.15 = 205,749.47 : x
  2. Step 2: Convert to fraction form
    377,829.45/521,397.15 = 205,749.47/x
  3. Step 3: Cross multiply
    377,829.45x = 521,397.15 × 205,749.47
  4. Step 4: Simplify right side
    377,829.45x = 107,277,184,665.03
  5. Step 5: Solve for x
    x = 107,277,184,665.03/377,829.45
  6. Step 6: Final answer
    x = 283,930.18

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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.