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Finding the Fourth Proportional to 307,533.40, 461,300.10 and 188,819.80

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Solution

The fourth proportional to 307,533.40, 461,300.10 and 188,819.80 is: 283,229.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,533.40 : 461,300.10 = 188,819.80 : x
  2. Step 2: Convert to fraction form
    307,533.40/461,300.10 = 188,819.80/x
  3. Step 3: Cross multiply
    307,533.40x = 461,300.10 × 188,819.80
  4. Step 4: Simplify right side
    307,533.40x = 87,102,592,621.98
  5. Step 5: Solve for x
    x = 87,102,592,621.98/307,533.40
  6. Step 6: Final answer
    x = 283,229.70

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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.