Home / 377,857.10-521,434.98-205,778.07

Finding the Fourth Proportional to 377,857.10, 521,434.98 and 205,778.07

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Solution

The fourth proportional to 377,857.10, 521,434.98 and 205,778.07 is: 283,969.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,857.10 : 521,434.98 = 205,778.07 : x
  2. Step 2: Convert to fraction form
    377,857.10/521,434.98 = 205,778.07/x
  3. Step 3: Cross multiply
    377,857.10x = 521,434.98 × 205,778.07
  4. Step 4: Simplify right side
    377,857.10x = 107,299,883,814.89
  5. Step 5: Solve for x
    x = 107,299,883,814.89/377,857.10
  6. Step 6: Final answer
    x = 283,969.48

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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.