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Finding the Fourth Proportional to 369,334.86, 509,919.30 and 231,702.48

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Solution

The fourth proportional to 369,334.86, 509,919.30 and 231,702.48 is: 319,898.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,334.86 : 509,919.30 = 231,702.48 : x
  2. Step 2: Convert to fraction form
    369,334.86/509,919.30 = 231,702.48/x
  3. Step 3: Cross multiply
    369,334.86x = 509,919.30 × 231,702.48
  4. Step 4: Simplify right side
    369,334.86x = 118,149,566,409.86
  5. Step 5: Solve for x
    x = 118,149,566,409.86/369,334.86
  6. Step 6: Final answer
    x = 319,898.23

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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.