Home / 215,311.47-296,821.86-151,451.07

Finding the Fourth Proportional to 215,311.47, 296,821.86 and 151,451.07

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Solution

The fourth proportional to 215,311.47, 296,821.86 and 151,451.07 is: 208,785.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,311.47 : 296,821.86 = 151,451.07 : x
  2. Step 2: Convert to fraction form
    215,311.47/296,821.86 = 151,451.07/x
  3. Step 3: Cross multiply
    215,311.47x = 296,821.86 × 151,451.07
  4. Step 4: Simplify right side
    215,311.47x = 44,953,988,296.39
  5. Step 5: Solve for x
    x = 44,953,988,296.39/215,311.47
  6. Step 6: Final answer
    x = 208,785.85

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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.