Home / 377,402.16-520,803.11-205,315.72

Finding the Fourth Proportional to 377,402.16, 520,803.11 and 205,315.72

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Solution

The fourth proportional to 377,402.16, 520,803.11 and 205,315.72 is: 283,329.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,402.16 : 520,803.11 = 205,315.72 : x
  2. Step 2: Convert to fraction form
    377,402.16/520,803.11 = 205,315.72/x
  3. Step 3: Cross multiply
    377,402.16x = 520,803.11 × 205,315.72
  4. Step 4: Simplify right side
    377,402.16x = 106,929,067,803.62
  5. Step 5: Solve for x
    x = 106,929,067,803.62/377,402.16
  6. Step 6: Final answer
    x = 283,329.24

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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.