Home / 377,823.36-521,397-208,057.80

Finding the Fourth Proportional to 377,823.36, 521,397 and 208,057.80

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Solution

The fourth proportional to 377,823.36, 521,397 and 208,057.80 is: 287,120.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,823.36 : 521,397 = 208,057.80 : x
  2. Step 2: Convert to fraction form
    377,823.36/521,397 = 208,057.80/x
  3. Step 3: Cross multiply
    377,823.36x = 521,397 × 208,057.80
  4. Step 4: Simplify right side
    377,823.36x = 108,480,712,746.60
  5. Step 5: Solve for x
    x = 108,480,712,746.60/377,823.36
  6. Step 6: Final answer
    x = 287,120.18

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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.