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Finding the Fourth Proportional to 366,812.60, 550,316.10 and 130,130.60

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Solution

The fourth proportional to 366,812.60, 550,316.10 and 130,130.60 is: 195,230.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,812.60 : 550,316.10 = 130,130.60 : x
  2. Step 2: Convert to fraction form
    366,812.60/550,316.10 = 130,130.60/x
  3. Step 3: Cross multiply
    366,812.60x = 550,316.10 × 130,130.60
  4. Step 4: Simplify right side
    366,812.60x = 71,612,964,282.66
  5. Step 5: Solve for x
    x = 71,612,964,282.66/366,812.60
  6. Step 6: Final answer
    x = 195,230.38

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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.