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Finding the Fourth Proportional to 358,108.36, 494,023.88 and 214,619.30

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Solution

The fourth proportional to 358,108.36, 494,023.88 and 214,619.30 is: 296,075.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,108.36 : 494,023.88 = 214,619.30 : x
  2. Step 2: Convert to fraction form
    358,108.36/494,023.88 = 214,619.30/x
  3. Step 3: Cross multiply
    358,108.36x = 494,023.88 × 214,619.30
  4. Step 4: Simplify right side
    358,108.36x = 106,027,059,308.88
  5. Step 5: Solve for x
    x = 106,027,059,308.88/358,108.36
  6. Step 6: Final answer
    x = 296,075.35

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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.