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Finding the Fourth Proportional to 430,348.32, 593,910.36 and 239,379.48

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Solution

The fourth proportional to 430,348.32, 593,910.36 and 239,379.48 is: 330,360.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,348.32 : 593,910.36 = 239,379.48 : x
  2. Step 2: Convert to fraction form
    430,348.32/593,910.36 = 239,379.48/x
  3. Step 3: Cross multiply
    430,348.32x = 593,910.36 × 239,379.48
  4. Step 4: Simplify right side
    430,348.32x = 142,169,953,143.41
  5. Step 5: Solve for x
    x = 142,169,953,143.41/430,348.32
  6. Step 6: Final answer
    x = 330,360.19

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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.