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Finding the Fourth Proportional to 366,465.20, 549,503.40 and 129,815.60

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Solution

The fourth proportional to 366,465.20, 549,503.40 and 129,815.60 is: 194,654.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,465.20 : 549,503.40 = 129,815.60 : x
  2. Step 2: Convert to fraction form
    366,465.20/549,503.40 = 129,815.60/x
  3. Step 3: Cross multiply
    366,465.20x = 549,503.40 × 129,815.60
  4. Step 4: Simplify right side
    366,465.20x = 71,334,113,573.04
  5. Step 5: Solve for x
    x = 71,334,113,573.04/366,465.20
  6. Step 6: Final answer
    x = 194,654.54

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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.