Home / 377,815.86-521,386.47-208,050.66

Finding the Fourth Proportional to 377,815.86, 521,386.47 and 208,050.66

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Solution

The fourth proportional to 377,815.86, 521,386.47 and 208,050.66 is: 287,110.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,815.86 : 521,386.47 = 208,050.66 : x
  2. Step 2: Convert to fraction form
    377,815.86/521,386.47 = 208,050.66/x
  3. Step 3: Cross multiply
    377,815.86x = 521,386.47 × 208,050.66
  4. Step 4: Simplify right side
    377,815.86x = 108,474,799,198.57
  5. Step 5: Solve for x
    x = 108,474,799,198.57/377,815.86
  6. Step 6: Final answer
    x = 287,110.23

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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.