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Finding the Fourth Proportional to 492,739.32, 739,149.30 and 155,803.08

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Solution

The fourth proportional to 492,739.32, 739,149.30 and 155,803.08 is: 233,717.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,739.32 : 739,149.30 = 155,803.08 : x
  2. Step 2: Convert to fraction form
    492,739.32/739,149.30 = 155,803.08/x
  3. Step 3: Cross multiply
    492,739.32x = 739,149.30 × 155,803.08
  4. Step 4: Simplify right side
    492,739.32x = 115,161,737,519.84
  5. Step 5: Solve for x
    x = 115,161,737,519.84/492,739.32
  6. Step 6: Final answer
    x = 233,717.37

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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.