Home / 377,513.42-520,961.78-205,425.51

Finding the Fourth Proportional to 377,513.42, 520,961.78 and 205,425.51

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Solution

The fourth proportional to 377,513.42, 520,961.78 and 205,425.51 is: 283,483.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,513.42 : 520,961.78 = 205,425.51 : x
  2. Step 2: Convert to fraction form
    377,513.42/520,961.78 = 205,425.51/x
  3. Step 3: Cross multiply
    377,513.42x = 520,961.78 × 205,425.51
  4. Step 4: Simplify right side
    377,513.42x = 107,018,838,319.88
  5. Step 5: Solve for x
    x = 107,018,838,319.88/377,513.42
  6. Step 6: Final answer
    x = 283,483.54

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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.