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Finding the Fourth Proportional to 262,644.20, 393,851.10 and 104,820.20

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Solution

The fourth proportional to 262,644.20, 393,851.10 and 104,820.20 is: 157,184.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,644.20 : 393,851.10 = 104,820.20 : x
  2. Step 2: Convert to fraction form
    262,644.20/393,851.10 = 104,820.20/x
  3. Step 3: Cross multiply
    262,644.20x = 393,851.10 × 104,820.20
  4. Step 4: Simplify right side
    262,644.20x = 41,283,551,072.22
  5. Step 5: Solve for x
    x = 41,283,551,072.22/262,644.20
  6. Step 6: Final answer
    x = 157,184.32

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1.5x scale

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.