Home / 348,021.20-522,031.80-214,468.40

Finding the Fourth Proportional to 348,021.20, 522,031.80 and 214,468.40

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Solution

The fourth proportional to 348,021.20, 522,031.80 and 214,468.40 is: 321,702.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,021.20 : 522,031.80 = 214,468.40 : x
  2. Step 2: Convert to fraction form
    348,021.20/522,031.80 = 214,468.40/x
  3. Step 3: Cross multiply
    348,021.20x = 522,031.80 × 214,468.40
  4. Step 4: Simplify right side
    348,021.20x = 111,959,324,895.12
  5. Step 5: Solve for x
    x = 111,959,324,895.12/348,021.20
  6. Step 6: Final answer
    x = 321,702.60

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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.