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Finding the Fourth Proportional to 330,858.30, 495,959.40 and 162,240.60

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Solution

The fourth proportional to 330,858.30, 495,959.40 and 162,240.60 is: 243,200.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,858.30 : 495,959.40 = 162,240.60 : x
  2. Step 2: Convert to fraction form
    330,858.30/495,959.40 = 162,240.60/x
  3. Step 3: Cross multiply
    330,858.30x = 495,959.40 × 162,240.60
  4. Step 4: Simplify right side
    330,858.30x = 80,464,750,631.64
  5. Step 5: Solve for x
    x = 80,464,750,631.64/330,858.30
  6. Step 6: Final answer
    x = 243,200.04

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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.