Home / 347,965.75-521,948.64-85,309.75

Finding the Fourth Proportional to 347,965.75, 521,948.64 and 85,309.75

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Solution

The fourth proportional to 347,965.75, 521,948.64 and 85,309.75 is: 127,964.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,965.75 : 521,948.64 = 85,309.75 : x
  2. Step 2: Convert to fraction form
    347,965.75/521,948.64 = 85,309.75/x
  3. Step 3: Cross multiply
    347,965.75x = 521,948.64 × 85,309.75
  4. Step 4: Simplify right side
    347,965.75x = 44,527,307,991.24
  5. Step 5: Solve for x
    x = 44,527,307,991.24/347,965.75
  6. Step 6: Final answer
    x = 127,964.63

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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.