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Finding the Fourth Proportional to 351,654.13, 485,282.90 and 190,510.30

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Solution

The fourth proportional to 351,654.13, 485,282.90 and 190,510.30 is: 262,904.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,654.13 : 485,282.90 = 190,510.30 : x
  2. Step 2: Convert to fraction form
    351,654.13/485,282.90 = 190,510.30/x
  3. Step 3: Cross multiply
    351,654.13x = 485,282.90 × 190,510.30
  4. Step 4: Simplify right side
    351,654.13x = 92,451,387,484.90
  5. Step 5: Solve for x
    x = 92,451,387,484.90/351,654.13
  6. Step 6: Final answer
    x = 262,904.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.