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Finding the Fourth Proportional to 215,381.79, 297,236.66 and 119,894.54

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Solution

The fourth proportional to 215,381.79, 297,236.66 and 119,894.54 is: 165,459.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,381.79 : 297,236.66 = 119,894.54 : x
  2. Step 2: Convert to fraction form
    215,381.79/297,236.66 = 119,894.54/x
  3. Step 3: Cross multiply
    215,381.79x = 297,236.66 × 119,894.54
  4. Step 4: Simplify right side
    215,381.79x = 35,637,050,536.18
  5. Step 5: Solve for x
    x = 35,637,050,536.18/215,381.79
  6. Step 6: Final answer
    x = 165,459.91

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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.