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Finding the Fourth Proportional to 330,586.60, 495,879.90 and 197,876.20

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Solution

The fourth proportional to 330,586.60, 495,879.90 and 197,876.20 is: 296,814.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,586.60 : 495,879.90 = 197,876.20 : x
  2. Step 2: Convert to fraction form
    330,586.60/495,879.90 = 197,876.20/x
  3. Step 3: Cross multiply
    330,586.60x = 495,879.90 × 197,876.20
  4. Step 4: Simplify right side
    330,586.60x = 98,122,830,268.38
  5. Step 5: Solve for x
    x = 98,122,830,268.38/330,586.60
  6. Step 6: Final answer
    x = 296,814.30

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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.