Home / 289,250.51-433,831.21-78,904.85

Finding the Fourth Proportional to 289,250.51, 433,831.21 and 78,904.85

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Solution

The fourth proportional to 289,250.51, 433,831.21 and 78,904.85 is: 118,345.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,250.51 : 433,831.21 = 78,904.85 : x
  2. Step 2: Convert to fraction form
    289,250.51/433,831.21 = 78,904.85/x
  3. Step 3: Cross multiply
    289,250.51x = 433,831.21 × 78,904.85
  4. Step 4: Simplify right side
    289,250.51x = 34,231,384,183.95
  5. Step 5: Solve for x
    x = 34,231,384,183.95/289,250.51
  6. Step 6: Final answer
    x = 118,345.11

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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.