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Finding the Fourth Proportional to 215,368.92, 297,218.88 and 119,881.71

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Solution

The fourth proportional to 215,368.92, 297,218.88 and 119,881.71 is: 165,442.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,368.92 : 297,218.88 = 119,881.71 : x
  2. Step 2: Convert to fraction form
    215,368.92/297,218.88 = 119,881.71/x
  3. Step 3: Cross multiply
    215,368.92x = 297,218.88 × 119,881.71
  4. Step 4: Simplify right side
    215,368.92x = 35,631,107,578.68
  5. Step 5: Solve for x
    x = 35,631,107,578.68/215,368.92
  6. Step 6: Final answer
    x = 165,442.20

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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.