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Finding the Fourth Proportional to 215,036.69, 296,795.79 and 136,403.79

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Solution

The fourth proportional to 215,036.69, 296,795.79 and 136,403.79 is: 188,265.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,036.69 : 296,795.79 = 136,403.79 : x
  2. Step 2: Convert to fraction form
    215,036.69/296,795.79 = 136,403.79/x
  3. Step 3: Cross multiply
    215,036.69x = 296,795.79 × 136,403.79
  4. Step 4: Simplify right side
    215,036.69x = 40,484,070,576.21
  5. Step 5: Solve for x
    x = 40,484,070,576.21/215,036.69
  6. Step 6: Final answer
    x = 188,265.87

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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.