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Finding the Fourth Proportional to 377,285.60, 565,912.20 and 127,967.60

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Solution

The fourth proportional to 377,285.60, 565,912.20 and 127,967.60 is: 191,945.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,285.60 : 565,912.20 = 127,967.60 : x
  2. Step 2: Convert to fraction form
    377,285.60/565,912.20 = 127,967.60/x
  3. Step 3: Cross multiply
    377,285.60x = 565,912.20 × 127,967.60
  4. Step 4: Simplify right side
    377,285.60x = 72,418,426,044.72
  5. Step 5: Solve for x
    x = 72,418,426,044.72/377,285.60
  6. Step 6: Final answer
    x = 191,945.91

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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.