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Finding the Fourth Proportional to 343,880.40, 515,820.60 and 224,308.20

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Solution

The fourth proportional to 343,880.40, 515,820.60 and 224,308.20 is: 336,462.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,880.40 : 515,820.60 = 224,308.20 : x
  2. Step 2: Convert to fraction form
    343,880.40/515,820.60 = 224,308.20/x
  3. Step 3: Cross multiply
    343,880.40x = 515,820.60 × 224,308.20
  4. Step 4: Simplify right side
    343,880.40x = 115,702,790,308.92
  5. Step 5: Solve for x
    x = 115,702,790,308.92/343,880.40
  6. Step 6: Final answer
    x = 336,462.30

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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.