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Finding the Fourth Proportional to 490,807.98, 736,190.55 and 153,840.94

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Solution

The fourth proportional to 490,807.98, 736,190.55 and 153,840.94 is: 230,754.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,807.98 : 736,190.55 = 153,840.94 : x
  2. Step 2: Convert to fraction form
    490,807.98/736,190.55 = 153,840.94/x
  3. Step 3: Cross multiply
    490,807.98x = 736,190.55 × 153,840.94
  4. Step 4: Simplify right side
    490,807.98x = 113,256,244,390.64
  5. Step 5: Solve for x
    x = 113,256,244,390.64/490,807.98
  6. Step 6: Final answer
    x = 230,754.69

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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.