Home / 377,779.97-521,345.71-205,707.36

Finding the Fourth Proportional to 377,779.97, 521,345.71 and 205,707.36

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Solution

The fourth proportional to 377,779.97, 521,345.71 and 205,707.36 is: 283,881.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,779.97 : 521,345.71 = 205,707.36 : x
  2. Step 2: Convert to fraction form
    377,779.97/521,345.71 = 205,707.36/x
  3. Step 3: Cross multiply
    377,779.97x = 521,345.71 × 205,707.36
  4. Step 4: Simplify right side
    377,779.97x = 107,244,649,651.43
  5. Step 5: Solve for x
    x = 107,244,649,651.43/377,779.97
  6. Step 6: Final answer
    x = 283,881.25

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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.