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Finding the Fourth Proportional to 448,402.56, 618,799.76 and 247,205.76

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Solution

The fourth proportional to 448,402.56, 618,799.76 and 247,205.76 is: 341,146.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,402.56 : 618,799.76 = 247,205.76 : x
  2. Step 2: Convert to fraction form
    448,402.56/618,799.76 = 247,205.76/x
  3. Step 3: Cross multiply
    448,402.56x = 618,799.76 × 247,205.76
  4. Step 4: Simplify right side
    448,402.56x = 152,970,864,958.62
  5. Step 5: Solve for x
    x = 152,970,864,958.62/448,402.56
  6. Step 6: Final answer
    x = 341,146.28

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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.