Home / 377,778.08-521,345.22-208,018.28

Finding the Fourth Proportional to 377,778.08, 521,345.22 and 208,018.28

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Solution

The fourth proportional to 377,778.08, 521,345.22 and 208,018.28 is: 287,071.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,778.08 : 521,345.22 = 208,018.28 : x
  2. Step 2: Convert to fraction form
    377,778.08/521,345.22 = 208,018.28/x
  3. Step 3: Cross multiply
    377,778.08x = 521,345.22 × 208,018.28
  4. Step 4: Simplify right side
    377,778.08x = 108,449,335,950.62
  5. Step 5: Solve for x
    x = 108,449,335,950.62/377,778.08
  6. Step 6: Final answer
    x = 287,071.54

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1.5x scale

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.