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Finding the Fourth Proportional to 307,113.28, 423,671.46 and 179,710

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Solution

The fourth proportional to 307,113.28, 423,671.46 and 179,710 is: 247,915.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,113.28 : 423,671.46 = 179,710 : x
  2. Step 2: Convert to fraction form
    307,113.28/423,671.46 = 179,710/x
  3. Step 3: Cross multiply
    307,113.28x = 423,671.46 × 179,710
  4. Step 4: Simplify right side
    307,113.28x = 76,137,998,076.60
  5. Step 5: Solve for x
    x = 76,137,998,076.60/307,113.28
  6. Step 6: Final answer
    x = 247,915.03

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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.