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Finding the Fourth Proportional to 366,900.80, 549,670.80 and 208,659.20

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Solution

The fourth proportional to 366,900.80, 549,670.80 and 208,659.20 is: 312,601.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,900.80 : 549,670.80 = 208,659.20 : x
  2. Step 2: Convert to fraction form
    366,900.80/549,670.80 = 208,659.20/x
  3. Step 3: Cross multiply
    366,900.80x = 549,670.80 × 208,659.20
  4. Step 4: Simplify right side
    366,900.80x = 114,693,869,391.36
  5. Step 5: Solve for x
    x = 114,693,869,391.36/366,900.80
  6. Step 6: Final answer
    x = 312,601.85

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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.