Home / 260,183.34-390,301.11-70,646.58

Finding the Fourth Proportional to 260,183.34, 390,301.11 and 70,646.58

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Solution

The fourth proportional to 260,183.34, 390,301.11 and 70,646.58 is: 105,976.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,183.34 : 390,301.11 = 70,646.58 : x
  2. Step 2: Convert to fraction form
    260,183.34/390,301.11 = 70,646.58/x
  3. Step 3: Cross multiply
    260,183.34x = 390,301.11 × 70,646.58
  4. Step 4: Simplify right side
    260,183.34x = 27,573,438,591.70
  5. Step 5: Solve for x
    x = 27,573,438,591.70/260,183.34
  6. Step 6: Final answer
    x = 105,976.96

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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.