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Finding the Fourth Proportional to 330,054.60, 495,276.30 and 218,058.60

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Solution

The fourth proportional to 330,054.60, 495,276.30 and 218,058.60 is: 327,216.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,054.60 : 495,276.30 = 218,058.60 : x
  2. Step 2: Convert to fraction form
    330,054.60/495,276.30 = 218,058.60/x
  3. Step 3: Cross multiply
    330,054.60x = 495,276.30 × 218,058.60
  4. Step 4: Simplify right side
    330,054.60x = 107,999,256,591.18
  5. Step 5: Solve for x
    x = 107,999,256,591.18/330,054.60
  6. Step 6: Final answer
    x = 327,216.34

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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.