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Finding the Fourth Proportional to 324,156.60, 486,522.90 and 190,870.20

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Solution

The fourth proportional to 324,156.60, 486,522.90 and 190,870.20 is: 286,474.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,156.60 : 486,522.90 = 190,870.20 : x
  2. Step 2: Convert to fraction form
    324,156.60/486,522.90 = 190,870.20/x
  3. Step 3: Cross multiply
    324,156.60x = 486,522.90 × 190,870.20
  4. Step 4: Simplify right side
    324,156.60x = 92,862,723,227.58
  5. Step 5: Solve for x
    x = 92,862,723,227.58/324,156.60
  6. Step 6: Final answer
    x = 286,474.88

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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.