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Finding the Fourth Proportional to 330,993, 456,780.06 and 180,099.72

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Solution

The fourth proportional to 330,993, 456,780.06 and 180,099.72 is: 248,542.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,993 : 456,780.06 = 180,099.72 : x
  2. Step 2: Convert to fraction form
    330,993/456,780.06 = 180,099.72/x
  3. Step 3: Cross multiply
    330,993x = 456,780.06 × 180,099.72
  4. Step 4: Simplify right side
    330,993x = 82,265,960,907.58
  5. Step 5: Solve for x
    x = 82,265,960,907.58/330,993
  6. Step 6: Final answer
    x = 248,542.90

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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.