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Finding the Fourth Proportional to 330,654.37, 455,874.73 and 214,160.57

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Solution

The fourth proportional to 330,654.37, 455,874.73 and 214,160.57 is: 295,264.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,654.37 : 455,874.73 = 214,160.57 : x
  2. Step 2: Convert to fraction form
    330,654.37/455,874.73 = 214,160.57/x
  3. Step 3: Cross multiply
    330,654.37x = 455,874.73 × 214,160.57
  4. Step 4: Simplify right side
    330,654.37x = 97,630,392,025.40
  5. Step 5: Solve for x
    x = 97,630,392,025.40/330,654.37
  6. Step 6: Final answer
    x = 295,264.19

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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.