Home / 289,831.38-434,820.60-90,153.24

Finding the Fourth Proportional to 289,831.38, 434,820.60 and 90,153.24

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Solution

The fourth proportional to 289,831.38, 434,820.60 and 90,153.24 is: 135,252.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,831.38 : 434,820.60 = 90,153.24 : x
  2. Step 2: Convert to fraction form
    289,831.38/434,820.60 = 90,153.24/x
  3. Step 3: Cross multiply
    289,831.38x = 434,820.60 × 90,153.24
  4. Step 4: Simplify right side
    289,831.38x = 39,200,485,908.74
  5. Step 5: Solve for x
    x = 39,200,485,908.74/289,831.38
  6. Step 6: Final answer
    x = 135,252.73

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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.