Home / 377,291.08-520,630.58-222,218.20

Finding the Fourth Proportional to 377,291.08, 520,630.58 and 222,218.20

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Solution

The fourth proportional to 377,291.08, 520,630.58 and 222,218.20 is: 306,642.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,291.08 : 520,630.58 = 222,218.20 : x
  2. Step 2: Convert to fraction form
    377,291.08/520,630.58 = 222,218.20/x
  3. Step 3: Cross multiply
    377,291.08x = 520,630.58 × 222,218.20
  4. Step 4: Simplify right side
    377,291.08x = 115,693,590,352.56
  5. Step 5: Solve for x
    x = 115,693,590,352.56/377,291.08
  6. Step 6: Final answer
    x = 306,642.79

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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.