Home / 377,915.85-521,513.19-205,829.91

Finding the Fourth Proportional to 377,915.85, 521,513.19 and 205,829.91

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Solution

The fourth proportional to 377,915.85, 521,513.19 and 205,829.91 is: 284,039.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,915.85 : 521,513.19 = 205,829.91 : x
  2. Step 2: Convert to fraction form
    377,915.85/521,513.19 = 205,829.91/x
  3. Step 3: Cross multiply
    377,915.85x = 521,513.19 × 205,829.91
  4. Step 4: Simplify right side
    377,915.85x = 107,343,012,961.51
  5. Step 5: Solve for x
    x = 107,343,012,961.51/377,915.85
  6. Step 6: Final answer
    x = 284,039.46

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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.