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Finding the Fourth Proportional to 331,334.40, 457,411.20 and 224,467.20

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Solution

The fourth proportional to 331,334.40, 457,411.20 and 224,467.20 is: 309,879.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,334.40 : 457,411.20 = 224,467.20 : x
  2. Step 2: Convert to fraction form
    331,334.40/457,411.20 = 224,467.20/x
  3. Step 3: Cross multiply
    331,334.40x = 457,411.20 × 224,467.20
  4. Step 4: Simplify right side
    331,334.40x = 102,673,811,312.64
  5. Step 5: Solve for x
    x = 102,673,811,312.64/331,334.40
  6. Step 6: Final answer
    x = 309,879.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.