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Finding the Fourth Proportional to 634,459.72, 951,309.41 and 201,990.28

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Solution

The fourth proportional to 634,459.72, 951,309.41 and 201,990.28 is: 302,864.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,459.72 : 951,309.41 = 201,990.28 : x
  2. Step 2: Convert to fraction form
    634,459.72/951,309.41 = 201,990.28/x
  3. Step 3: Cross multiply
    634,459.72x = 951,309.41 × 201,990.28
  4. Step 4: Simplify right side
    634,459.72x = 192,155,251,209.29
  5. Step 5: Solve for x
    x = 192,155,251,209.29/634,459.72
  6. Step 6: Final answer
    x = 302,864.38

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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.