Home / 421,067.70-581,066.46-230,076.72

Finding the Fourth Proportional to 421,067.70, 581,066.46 and 230,076.72

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Solution

The fourth proportional to 421,067.70, 581,066.46 and 230,076.72 is: 317,502.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,067.70 : 581,066.46 = 230,076.72 : x
  2. Step 2: Convert to fraction form
    421,067.70/581,066.46 = 230,076.72/x
  3. Step 3: Cross multiply
    421,067.70x = 581,066.46 × 230,076.72
  4. Step 4: Simplify right side
    421,067.70x = 133,689,865,218.81
  5. Step 5: Solve for x
    x = 133,689,865,218.81/421,067.70
  6. Step 6: Final answer
    x = 317,502.07

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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.