Home / 215,421.12-296,972.46-151,560.72

Finding the Fourth Proportional to 215,421.12, 296,972.46 and 151,560.72

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Solution

The fourth proportional to 215,421.12, 296,972.46 and 151,560.72 is: 208,936.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,421.12 : 296,972.46 = 151,560.72 : x
  2. Step 2: Convert to fraction form
    215,421.12/296,972.46 = 151,560.72/x
  3. Step 3: Cross multiply
    215,421.12x = 296,972.46 × 151,560.72
  4. Step 4: Simplify right side
    215,421.12x = 45,009,359,857.77
  5. Step 5: Solve for x
    x = 45,009,359,857.77/215,421.12
  6. Step 6: Final answer
    x = 208,936.62

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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.