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Finding the Fourth Proportional to 391,228.56, 586,842.84 and 110,748.24

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Solution

The fourth proportional to 391,228.56, 586,842.84 and 110,748.24 is: 166,122.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,228.56 : 586,842.84 = 110,748.24 : x
  2. Step 2: Convert to fraction form
    391,228.56/586,842.84 = 110,748.24/x
  3. Step 3: Cross multiply
    391,228.56x = 586,842.84 × 110,748.24
  4. Step 4: Simplify right side
    391,228.56x = 64,991,811,686.60
  5. Step 5: Solve for x
    x = 64,991,811,686.60/391,228.56
  6. Step 6: Final answer
    x = 166,122.36

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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.