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Finding the Fourth Proportional to 315,029.40, 472,380.90 and 93,384.60

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Solution

The fourth proportional to 315,029.40, 472,380.90 and 93,384.60 is: 140,028.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,029.40 : 472,380.90 = 93,384.60 : x
  2. Step 2: Convert to fraction form
    315,029.40/472,380.90 = 93,384.60/x
  3. Step 3: Cross multiply
    315,029.40x = 472,380.90 × 93,384.60
  4. Step 4: Simplify right side
    315,029.40x = 44,113,101,394.14
  5. Step 5: Solve for x
    x = 44,113,101,394.14/315,029.40
  6. Step 6: Final answer
    x = 140,028.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.