Home / 448,358.56-618,739.60-247,161.76

Finding the Fourth Proportional to 448,358.56, 618,739.60 and 247,161.76

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Solution

The fourth proportional to 448,358.56, 618,739.60 and 247,161.76 is: 341,085.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,358.56 : 618,739.60 = 247,161.76 : x
  2. Step 2: Convert to fraction form
    448,358.56/618,739.60 = 247,161.76/x
  3. Step 3: Cross multiply
    448,358.56x = 618,739.60 × 247,161.76
  4. Step 4: Simplify right side
    448,358.56x = 152,928,768,517.70
  5. Step 5: Solve for x
    x = 152,928,768,517.70/448,358.56
  6. Step 6: Final answer
    x = 341,085.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.