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Finding the Fourth Proportional to 215,369.82, 297,210.36 and 119,874.47

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Solution

The fourth proportional to 215,369.82, 297,210.36 and 119,874.47 is: 165,426.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,369.82 : 297,210.36 = 119,874.47 : x
  2. Step 2: Convert to fraction form
    215,369.82/297,210.36 = 119,874.47/x
  3. Step 3: Cross multiply
    215,369.82x = 297,210.36 × 119,874.47
  4. Step 4: Simplify right side
    215,369.82x = 35,627,933,346.99
  5. Step 5: Solve for x
    x = 35,627,933,346.99/215,369.82
  6. Step 6: Final answer
    x = 165,426.77

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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.