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Finding the Fourth Proportional to 246,643.80, 369,965.70 and 220,378.20

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Solution

The fourth proportional to 246,643.80, 369,965.70 and 220,378.20 is: 330,567.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,643.80 : 369,965.70 = 220,378.20 : x
  2. Step 2: Convert to fraction form
    246,643.80/369,965.70 = 220,378.20/x
  3. Step 3: Cross multiply
    246,643.80x = 369,965.70 × 220,378.20
  4. Step 4: Simplify right side
    246,643.80x = 81,532,375,027.74
  5. Step 5: Solve for x
    x = 81,532,375,027.74/246,643.80
  6. Step 6: Final answer
    x = 330,567.30

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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.