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Finding the Fourth Proportional to 262,017.80, 392,832.30 and 84,422.60

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Solution

The fourth proportional to 262,017.80, 392,832.30 and 84,422.60 is: 126,571.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,017.80 : 392,832.30 = 84,422.60 : x
  2. Step 2: Convert to fraction form
    262,017.80/392,832.30 = 84,422.60/x
  3. Step 3: Cross multiply
    262,017.80x = 392,832.30 × 84,422.60
  4. Step 4: Simplify right side
    262,017.80x = 33,163,924,129.98
  5. Step 5: Solve for x
    x = 33,163,924,129.98/262,017.80
  6. Step 6: Final answer
    x = 126,571.26

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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.