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Finding the Fourth Proportional to 366,969.48, 550,481.55 and 130,281.40

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Solution

The fourth proportional to 366,969.48, 550,481.55 and 130,281.40 is: 195,431.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,969.48 : 550,481.55 = 130,281.40 : x
  2. Step 2: Convert to fraction form
    366,969.48/550,481.55 = 130,281.40/x
  3. Step 3: Cross multiply
    366,969.48x = 550,481.55 × 130,281.40
  4. Step 4: Simplify right side
    366,969.48x = 71,717,507,008.17
  5. Step 5: Solve for x
    x = 71,717,507,008.17/366,969.48
  6. Step 6: Final answer
    x = 195,431.80

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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.