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Finding the Fourth Proportional to 370,145.40, 510,800.82 and 200,379.52

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Solution

The fourth proportional to 370,145.40, 510,800.82 and 200,379.52 is: 276,523.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,145.40 : 510,800.82 = 200,379.52 : x
  2. Step 2: Convert to fraction form
    370,145.40/510,800.82 = 200,379.52/x
  3. Step 3: Cross multiply
    370,145.40x = 510,800.82 × 200,379.52
  4. Step 4: Simplify right side
    370,145.40x = 102,354,023,127.21
  5. Step 5: Solve for x
    x = 102,354,023,127.21/370,145.40
  6. Step 6: Final answer
    x = 276,523.83

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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.