Home / 358,747.46-538,121.20-312,558.02

Finding the Fourth Proportional to 358,747.46, 538,121.20 and 312,558.02

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Solution

The fourth proportional to 358,747.46, 538,121.20 and 312,558.02 is: 468,837.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,747.46 : 538,121.20 = 312,558.02 : x
  2. Step 2: Convert to fraction form
    358,747.46/538,121.20 = 312,558.02/x
  3. Step 3: Cross multiply
    358,747.46x = 538,121.20 × 312,558.02
  4. Step 4: Simplify right side
    358,747.46x = 168,194,096,792.02
  5. Step 5: Solve for x
    x = 168,194,096,792.02/358,747.46
  6. Step 6: Final answer
    x = 468,837.04

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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.