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Finding the Fourth Proportional to 215,894.96, 297,925.08 and 120,397.04

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Solution

The fourth proportional to 215,894.96, 297,925.08 and 120,397.04 is: 166,142.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,894.96 : 297,925.08 = 120,397.04 : x
  2. Step 2: Convert to fraction form
    215,894.96/297,925.08 = 120,397.04/x
  3. Step 3: Cross multiply
    215,894.96x = 297,925.08 × 120,397.04
  4. Step 4: Simplify right side
    215,894.96x = 35,869,297,773.76
  5. Step 5: Solve for x
    x = 35,869,297,773.76/215,894.96
  6. Step 6: Final answer
    x = 166,142.36

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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.