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Finding the Fourth Proportional to 366,856.80, 549,604.80 and 208,615.20

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Solution

The fourth proportional to 366,856.80, 549,604.80 and 208,615.20 is: 312,535.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,856.80 : 549,604.80 = 208,615.20 : x
  2. Step 2: Convert to fraction form
    366,856.80/549,604.80 = 208,615.20/x
  3. Step 3: Cross multiply
    366,856.80x = 549,604.80 × 208,615.20
  4. Step 4: Simplify right side
    366,856.80x = 114,655,915,272.96
  5. Step 5: Solve for x
    x = 114,655,915,272.96/366,856.80
  6. Step 6: Final answer
    x = 312,535.89

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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.