Home / 430,519.14-645,764.22-231,228.77

Finding the Fourth Proportional to 430,519.14, 645,764.22 and 231,228.77

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Solution

The fourth proportional to 430,519.14, 645,764.22 and 231,228.77 is: 346,835.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,519.14 : 645,764.22 = 231,228.77 : x
  2. Step 2: Convert to fraction form
    430,519.14/645,764.22 = 231,228.77/x
  3. Step 3: Cross multiply
    430,519.14x = 645,764.22 × 231,228.77
  4. Step 4: Simplify right side
    430,519.14x = 149,319,263,071.79
  5. Step 5: Solve for x
    x = 149,319,263,071.79/430,519.14
  6. Step 6: Final answer
    x = 346,835.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.