Home / 243,046.20-363,986.10-118,241.40

Finding the Fourth Proportional to 243,046.20, 363,986.10 and 118,241.40

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Solution

The fourth proportional to 243,046.20, 363,986.10 and 118,241.40 is: 177,078.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,046.20 : 363,986.10 = 118,241.40 : x
  2. Step 2: Convert to fraction form
    243,046.20/363,986.10 = 118,241.40/x
  3. Step 3: Cross multiply
    243,046.20x = 363,986.10 × 118,241.40
  4. Step 4: Simplify right side
    243,046.20x = 43,038,226,044.54
  5. Step 5: Solve for x
    x = 43,038,226,044.54/243,046.20
  6. Step 6: Final answer
    x = 177,078.37

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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.