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Finding the Fourth Proportional to 366,303.30, 549,371.79 and 129,645.87

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Solution

The fourth proportional to 366,303.30, 549,371.79 and 129,645.87 is: 194,439.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,303.30 : 549,371.79 = 129,645.87 : x
  2. Step 2: Convert to fraction form
    366,303.30/549,371.79 = 129,645.87/x
  3. Step 3: Cross multiply
    366,303.30x = 549,371.79 × 129,645.87
  4. Step 4: Simplify right side
    366,303.30x = 71,223,783,668.01
  5. Step 5: Solve for x
    x = 71,223,783,668.01/366,303.30
  6. Step 6: Final answer
    x = 194,439.37

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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.