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Finding the Fourth Proportional to 366,220, 549,333.42 and 129,602.80

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Solution

The fourth proportional to 366,220, 549,333.42 and 129,602.80 is: 194,405.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,220 : 549,333.42 = 129,602.80 : x
  2. Step 2: Convert to fraction form
    366,220/549,333.42 = 129,602.80/x
  3. Step 3: Cross multiply
    366,220x = 549,333.42 × 129,602.80
  4. Step 4: Simplify right side
    366,220x = 71,195,149,365.58
  5. Step 5: Solve for x
    x = 71,195,149,365.58/366,220
  6. Step 6: Final answer
    x = 194,405.41

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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.