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Finding the Fourth Proportional to 262,379.66, 393,379.88 and 102,320.01

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Solution

The fourth proportional to 262,379.66, 393,379.88 and 102,320.01 is: 153,406.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,379.66 : 393,379.88 = 102,320.01 : x
  2. Step 2: Convert to fraction form
    262,379.66/393,379.88 = 102,320.01/x
  3. Step 3: Cross multiply
    262,379.66x = 393,379.88 × 102,320.01
  4. Step 4: Simplify right side
    262,379.66x = 40,250,632,743.80
  5. Step 5: Solve for x
    x = 40,250,632,743.80/262,379.66
  6. Step 6: Final answer
    x = 153,406.07

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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.