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Finding the Fourth Proportional to 490,362.86, 735,543.20 and 130,533.79

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Solution

The fourth proportional to 490,362.86, 735,543.20 and 130,533.79 is: 195,800.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,362.86 : 735,543.20 = 130,533.79 : x
  2. Step 2: Convert to fraction form
    490,362.86/735,543.20 = 130,533.79/x
  3. Step 3: Cross multiply
    490,362.86x = 735,543.20 × 130,533.79
  4. Step 4: Simplify right side
    490,362.86x = 96,013,240,092.20
  5. Step 5: Solve for x
    x = 96,013,240,092.20/490,362.86
  6. Step 6: Final answer
    x = 195,800.39

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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.