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Finding the Fourth Proportional to 448,397.56, 618,793.42 and 247,200.76

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Solution

The fourth proportional to 448,397.56, 618,793.42 and 247,200.76 is: 341,139.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,397.56 : 618,793.42 = 247,200.76 : x
  2. Step 2: Convert to fraction form
    448,397.56/618,793.42 = 247,200.76/x
  3. Step 3: Cross multiply
    448,397.56x = 618,793.42 × 247,200.76
  4. Step 4: Simplify right side
    448,397.56x = 152,966,203,707.00
  5. Step 5: Solve for x
    x = 152,966,203,707.00/448,397.56
  6. Step 6: Final answer
    x = 341,139.69

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1.5x scale

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.