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Finding the Fourth Proportional to 490,889.04, 736,247.16 and 131,064.36

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Solution

The fourth proportional to 490,889.04, 736,247.16 and 131,064.36 is: 196,573.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,889.04 : 736,247.16 = 131,064.36 : x
  2. Step 2: Convert to fraction form
    490,889.04/736,247.16 = 131,064.36/x
  3. Step 3: Cross multiply
    490,889.04x = 736,247.16 × 131,064.36
  4. Step 4: Simplify right side
    490,889.04x = 96,495,762,827.22
  5. Step 5: Solve for x
    x = 96,495,762,827.22/490,889.04
  6. Step 6: Final answer
    x = 196,573.47

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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.