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Finding the Fourth Proportional to 320,693.71, 480,082.21 and 193,950.56

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Solution

The fourth proportional to 320,693.71, 480,082.21 and 193,950.56 is: 290,346.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,693.71 : 480,082.21 = 193,950.56 : x
  2. Step 2: Convert to fraction form
    320,693.71/480,082.21 = 193,950.56/x
  3. Step 3: Cross multiply
    320,693.71x = 480,082.21 × 193,950.56
  4. Step 4: Simplify right side
    320,693.71x = 93,112,215,275.10
  5. Step 5: Solve for x
    x = 93,112,215,275.10/320,693.71
  6. Step 6: Final answer
    x = 290,346.25

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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.