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Finding the Fourth Proportional to 328,311.60, 492,175.80 and 195,050.40

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Solution

The fourth proportional to 328,311.60, 492,175.80 and 195,050.40 is: 292,402.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,311.60 : 492,175.80 = 195,050.40 : x
  2. Step 2: Convert to fraction form
    328,311.60/492,175.80 = 195,050.40/x
  3. Step 3: Cross multiply
    328,311.60x = 492,175.80 × 195,050.40
  4. Step 4: Simplify right side
    328,311.60x = 95,999,086,660.32
  5. Step 5: Solve for x
    x = 95,999,086,660.32/328,311.60
  6. Step 6: Final answer
    x = 292,402.36

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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.