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Finding the Fourth Proportional to 448,480.72, 618,873.96 and 247,278.16

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Solution

The fourth proportional to 448,480.72, 618,873.96 and 247,278.16 is: 341,227.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,480.72 : 618,873.96 = 247,278.16 : x
  2. Step 2: Convert to fraction form
    448,480.72/618,873.96 = 247,278.16/x
  3. Step 3: Cross multiply
    448,480.72x = 618,873.96 × 247,278.16
  4. Step 4: Simplify right side
    448,480.72x = 153,034,014,100.71
  5. Step 5: Solve for x
    x = 153,034,014,100.71/448,480.72
  6. Step 6: Final answer
    x = 341,227.63

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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.