Home / 307,941.60-461,566.80-130,418.40

Finding the Fourth Proportional to 307,941.60, 461,566.80 and 130,418.40

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Solution

The fourth proportional to 307,941.60, 461,566.80 and 130,418.40 is: 195,481.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,941.60 : 461,566.80 = 130,418.40 : x
  2. Step 2: Convert to fraction form
    307,941.60/461,566.80 = 130,418.40/x
  3. Step 3: Cross multiply
    307,941.60x = 461,566.80 × 130,418.40
  4. Step 4: Simplify right side
    307,941.60x = 60,196,803,549.12
  5. Step 5: Solve for x
    x = 60,196,803,549.12/307,941.60
  6. Step 6: Final answer
    x = 195,481.23

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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.