Home / 311,890.28-430,408.08-175,923.81

Finding the Fourth Proportional to 311,890.28, 430,408.08 and 175,923.81

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Solution

The fourth proportional to 311,890.28, 430,408.08 and 175,923.81 is: 242,774.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,890.28 : 430,408.08 = 175,923.81 : x
  2. Step 2: Convert to fraction form
    311,890.28/430,408.08 = 175,923.81/x
  3. Step 3: Cross multiply
    311,890.28x = 430,408.08 × 175,923.81
  4. Step 4: Simplify right side
    311,890.28x = 75,719,029,288.38
  5. Step 5: Solve for x
    x = 75,719,029,288.38/311,890.28
  6. Step 6: Final answer
    x = 242,774.58

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1.5x scale

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.