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Finding the Fourth Proportional to 320,650.92, 480,560.04 and 130,888.98

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Solution

The fourth proportional to 320,650.92, 480,560.04 and 130,888.98 is: 196,163.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,650.92 : 480,560.04 = 130,888.98 : x
  2. Step 2: Convert to fraction form
    320,650.92/480,560.04 = 130,888.98/x
  3. Step 3: Cross multiply
    320,650.92x = 480,560.04 × 130,888.98
  4. Step 4: Simplify right side
    320,650.92x = 62,900,013,464.36
  5. Step 5: Solve for x
    x = 62,900,013,464.36/320,650.92
  6. Step 6: Final answer
    x = 196,163.52

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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.