Home / 377,828.28-521,400.42-208,061

Finding the Fourth Proportional to 377,828.28, 521,400.42 and 208,061

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Solution

The fourth proportional to 377,828.28, 521,400.42 and 208,061 is: 287,122.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,828.28 : 521,400.42 = 208,061 : x
  2. Step 2: Convert to fraction form
    377,828.28/521,400.42 = 208,061/x
  3. Step 3: Cross multiply
    377,828.28x = 521,400.42 × 208,061
  4. Step 4: Simplify right side
    377,828.28x = 108,483,092,785.62
  5. Step 5: Solve for x
    x = 108,483,092,785.62/377,828.28
  6. Step 6: Final answer
    x = 287,122.74

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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.