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Finding the Fourth Proportional to 322,511.40, 483,911.10 and 112,300.20

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Solution

The fourth proportional to 322,511.40, 483,911.10 and 112,300.20 is: 168,500.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,511.40 : 483,911.10 = 112,300.20 : x
  2. Step 2: Convert to fraction form
    322,511.40/483,911.10 = 112,300.20/x
  3. Step 3: Cross multiply
    322,511.40x = 483,911.10 × 112,300.20
  4. Step 4: Simplify right side
    322,511.40x = 54,343,313,312.22
  5. Step 5: Solve for x
    x = 54,343,313,312.22/322,511.40
  6. Step 6: Final answer
    x = 168,500.44

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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.