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Finding the Fourth Proportional to 366,311.60, 549,564.60 and 129,629.60

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Solution

The fourth proportional to 366,311.60, 549,564.60 and 129,629.60 is: 194,478.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,311.60 : 549,564.60 = 129,629.60 : x
  2. Step 2: Convert to fraction form
    366,311.60/549,564.60 = 129,629.60/x
  3. Step 3: Cross multiply
    366,311.60x = 549,564.60 × 129,629.60
  4. Step 4: Simplify right side
    366,311.60x = 71,239,839,272.16
  5. Step 5: Solve for x
    x = 71,239,839,272.16/366,311.60
  6. Step 6: Final answer
    x = 194,478.80

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1.5x scale

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.