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Finding the Fourth Proportional to 331,444.40, 497,166.60 and 205,473.20

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Solution

The fourth proportional to 331,444.40, 497,166.60 and 205,473.20 is: 308,209.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,444.40 : 497,166.60 = 205,473.20 : x
  2. Step 2: Convert to fraction form
    331,444.40/497,166.60 = 205,473.20/x
  3. Step 3: Cross multiply
    331,444.40x = 497,166.60 × 205,473.20
  4. Step 4: Simplify right side
    331,444.40x = 102,154,412,235.12
  5. Step 5: Solve for x
    x = 102,154,412,235.12/331,444.40
  6. Step 6: Final answer
    x = 308,209.80

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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.