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Finding the Fourth Proportional to 366,989.60, 549,828.30 and 300,067.40

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Solution

The fourth proportional to 366,989.60, 549,828.30 and 300,067.40 is: 449,564.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,989.60 : 549,828.30 = 300,067.40 : x
  2. Step 2: Convert to fraction form
    366,989.60/549,828.30 = 300,067.40/x
  3. Step 3: Cross multiply
    366,989.60x = 549,828.30 × 300,067.40
  4. Step 4: Simplify right side
    366,989.60x = 164,985,548,427.42
  5. Step 5: Solve for x
    x = 164,985,548,427.42/366,989.60
  6. Step 6: Final answer
    x = 449,564.64

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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.