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Finding the Fourth Proportional to 300,083.25, 450,124.36 and 140,105.57

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Solution

The fourth proportional to 300,083.25, 450,124.36 and 140,105.57 is: 210,158.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,083.25 : 450,124.36 = 140,105.57 : x
  2. Step 2: Convert to fraction form
    300,083.25/450,124.36 = 140,105.57/x
  3. Step 3: Cross multiply
    300,083.25x = 450,124.36 × 140,105.57
  4. Step 4: Simplify right side
    300,083.25x = 63,064,927,427.80
  5. Step 5: Solve for x
    x = 63,064,927,427.80/300,083.25
  6. Step 6: Final answer
    x = 210,158.11

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1.5x scale

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.