Home / 376,920.90-520,145.01-207,151.38

Finding the Fourth Proportional to 376,920.90, 520,145.01 and 207,151.38

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Solution

The fourth proportional to 376,920.90, 520,145.01 and 207,151.38 is: 285,865.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,920.90 : 520,145.01 = 207,151.38 : x
  2. Step 2: Convert to fraction form
    376,920.90/520,145.01 = 207,151.38/x
  3. Step 3: Cross multiply
    376,920.90x = 520,145.01 × 207,151.38
  4. Step 4: Simplify right side
    376,920.90x = 107,748,756,621.61
  5. Step 5: Solve for x
    x = 107,748,756,621.61/376,920.90
  6. Step 6: Final answer
    x = 285,865.70

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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.