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Finding the Fourth Proportional to 143,682.88, 215,524.40 and 38,499.20

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Solution

The fourth proportional to 143,682.88, 215,524.40 and 38,499.20 is: 57,748.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,682.88 : 215,524.40 = 38,499.20 : x
  2. Step 2: Convert to fraction form
    143,682.88/215,524.40 = 38,499.20/x
  3. Step 3: Cross multiply
    143,682.88x = 215,524.40 × 38,499.20
  4. Step 4: Simplify right side
    143,682.88x = 8,297,516,980.48
  5. Step 5: Solve for x
    x = 8,297,516,980.48/143,682.88
  6. Step 6: Final answer
    x = 57,748.82

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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.