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Finding the Fourth Proportional to 328,902.60, 493,548.30 and 216,906.60

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Solution

The fourth proportional to 328,902.60, 493,548.30 and 216,906.60 is: 325,488.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,902.60 : 493,548.30 = 216,906.60 : x
  2. Step 2: Convert to fraction form
    328,902.60/493,548.30 = 216,906.60/x
  3. Step 3: Cross multiply
    328,902.60x = 493,548.30 × 216,906.60
  4. Step 4: Simplify right side
    328,902.60x = 107,053,883,688.78
  5. Step 5: Solve for x
    x = 107,053,883,688.78/328,902.60
  6. Step 6: Final answer
    x = 325,488.10

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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.