Home / 215,038.53-296,760.78-118,249.79

Finding the Fourth Proportional to 215,038.53, 296,760.78 and 118,249.79

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Solution

The fourth proportional to 215,038.53, 296,760.78 and 118,249.79 is: 163,188.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,038.53 : 296,760.78 = 118,249.79 : x
  2. Step 2: Convert to fraction form
    215,038.53/296,760.78 = 118,249.79/x
  3. Step 3: Cross multiply
    215,038.53x = 296,760.78 × 118,249.79
  4. Step 4: Simplify right side
    215,038.53x = 35,091,898,431.43
  5. Step 5: Solve for x
    x = 35,091,898,431.43/215,038.53
  6. Step 6: Final answer
    x = 163,188.89

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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.