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Finding the Fourth Proportional to 307,511.40, 461,612.70 and 237,700.20

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Solution

The fourth proportional to 307,511.40, 461,612.70 and 237,700.20 is: 356,817.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,511.40 : 461,612.70 = 237,700.20 : x
  2. Step 2: Convert to fraction form
    307,511.40/461,612.70 = 237,700.20/x
  3. Step 3: Cross multiply
    307,511.40x = 461,612.70 × 237,700.20
  4. Step 4: Simplify right side
    307,511.40x = 109,725,431,112.54
  5. Step 5: Solve for x
    x = 109,725,431,112.54/307,511.40
  6. Step 6: Final answer
    x = 356,817.44

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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.