Home / 421,669.51-581,917.62-230,682.90

Finding the Fourth Proportional to 421,669.51, 581,917.62 and 230,682.90

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Solution

The fourth proportional to 421,669.51, 581,917.62 and 230,682.90 is: 318,349.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,669.51 : 581,917.62 = 230,682.90 : x
  2. Step 2: Convert to fraction form
    421,669.51/581,917.62 = 230,682.90/x
  3. Step 3: Cross multiply
    421,669.51x = 581,917.62 × 230,682.90
  4. Step 4: Simplify right side
    421,669.51x = 134,238,444,142.70
  5. Step 5: Solve for x
    x = 134,238,444,142.70/421,669.51
  6. Step 6: Final answer
    x = 318,349.90

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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.