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Finding the Fourth Proportional to 331,343.80, 497,015.70 and 294,602.20

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Solution

The fourth proportional to 331,343.80, 497,015.70 and 294,602.20 is: 441,903.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,343.80 : 497,015.70 = 294,602.20 : x
  2. Step 2: Convert to fraction form
    331,343.80/497,015.70 = 294,602.20/x
  3. Step 3: Cross multiply
    331,343.80x = 497,015.70 × 294,602.20
  4. Step 4: Simplify right side
    331,343.80x = 146,421,918,654.54
  5. Step 5: Solve for x
    x = 146,421,918,654.54/331,343.80
  6. Step 6: Final answer
    x = 441,903.30

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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.