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Finding the Fourth Proportional to 448,369.64, 618,749.54 and 247,169

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Solution

The fourth proportional to 448,369.64, 618,749.54 and 247,169 is: 341,092.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,369.64 : 618,749.54 = 247,169 : x
  2. Step 2: Convert to fraction form
    448,369.64/618,749.54 = 247,169/x
  3. Step 3: Cross multiply
    448,369.64x = 618,749.54 × 247,169
  4. Step 4: Simplify right side
    448,369.64x = 152,935,705,052.26
  5. Step 5: Solve for x
    x = 152,935,705,052.26/448,369.64
  6. Step 6: Final answer
    x = 341,092.91

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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.