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Finding the Fourth Proportional to 398,233.60, 549,562.36 and 219,385.60

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Solution

The fourth proportional to 398,233.60, 549,562.36 and 219,385.60 is: 302,752.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,233.60 : 549,562.36 = 219,385.60 : x
  2. Step 2: Convert to fraction form
    398,233.60/549,562.36 = 219,385.60/x
  3. Step 3: Cross multiply
    398,233.60x = 549,562.36 × 219,385.60
  4. Step 4: Simplify right side
    398,233.60x = 120,566,068,086.02
  5. Step 5: Solve for x
    x = 120,566,068,086.02/398,233.60
  6. Step 6: Final answer
    x = 302,752.12

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.