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Finding the Fourth Proportional to 203,124.92, 305,154.50 and 143,291.10

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Solution

The fourth proportional to 203,124.92, 305,154.50 and 143,291.10 is: 215,266.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,124.92 : 305,154.50 = 143,291.10 : x
  2. Step 2: Convert to fraction form
    203,124.92/305,154.50 = 143,291.10/x
  3. Step 3: Cross multiply
    203,124.92x = 305,154.50 × 143,291.10
  4. Step 4: Simplify right side
    203,124.92x = 43,725,924,552.09
  5. Step 5: Solve for x
    x = 43,725,924,552.09/203,124.92
  6. Step 6: Final answer
    x = 215,266.18

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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.