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Finding the Fourth Proportional to 247,361.49, 341,358.96 and 139,929.23

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Solution

The fourth proportional to 247,361.49, 341,358.96 and 139,929.23 is: 193,102.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,361.49 : 341,358.96 = 139,929.23 : x
  2. Step 2: Convert to fraction form
    247,361.49/341,358.96 = 139,929.23/x
  3. Step 3: Cross multiply
    247,361.49x = 341,358.96 × 139,929.23
  4. Step 4: Simplify right side
    247,361.49x = 47,766,096,426.40
  5. Step 5: Solve for x
    x = 47,766,096,426.40/247,361.49
  6. Step 6: Final answer
    x = 193,102.40

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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.