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Finding the Fourth Proportional to 448,875, 619,447.50 and 247,671

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Solution

The fourth proportional to 448,875, 619,447.50 and 247,671 is: 341,785.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,875 : 619,447.50 = 247,671 : x
  2. Step 2: Convert to fraction form
    448,875/619,447.50 = 247,671/x
  3. Step 3: Cross multiply
    448,875x = 619,447.50 × 247,671
  4. Step 4: Simplify right side
    448,875x = 153,419,181,772.50
  5. Step 5: Solve for x
    x = 153,419,181,772.50/448,875
  6. Step 6: Final answer
    x = 341,785.98

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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.