Home / 471,005.23-649,981.08-256,140.67

Finding the Fourth Proportional to 471,005.23, 649,981.08 and 256,140.67

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Solution

The fourth proportional to 471,005.23, 649,981.08 and 256,140.67 is: 353,470.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,005.23 : 649,981.08 = 256,140.67 : x
  2. Step 2: Convert to fraction form
    471,005.23/649,981.08 = 256,140.67/x
  3. Step 3: Cross multiply
    471,005.23x = 649,981.08 × 256,140.67
  4. Step 4: Simplify right side
    471,005.23x = 166,486,589,318.52
  5. Step 5: Solve for x
    x = 166,486,589,318.52/471,005.23
  6. Step 6: Final answer
    x = 353,470.79

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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.