Home / 376,934.16-520,154.87-215,804.19

Finding the Fourth Proportional to 376,934.16, 520,154.87 and 215,804.19

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Solution

The fourth proportional to 376,934.16, 520,154.87 and 215,804.19 is: 297,801.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,934.16 : 520,154.87 = 215,804.19 : x
  2. Step 2: Convert to fraction form
    376,934.16/520,154.87 = 215,804.19/x
  3. Step 3: Cross multiply
    376,934.16x = 520,154.87 × 215,804.19
  4. Step 4: Simplify right side
    376,934.16x = 112,251,599,315.88
  5. Step 5: Solve for x
    x = 112,251,599,315.88/376,934.16
  6. Step 6: Final answer
    x = 297,801.61

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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.