Home / 289,719.56-434,490.38-200,336.58

Finding the Fourth Proportional to 289,719.56, 434,490.38 and 200,336.58

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Solution

The fourth proportional to 289,719.56, 434,490.38 and 200,336.58 is: 300,443.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,719.56 : 434,490.38 = 200,336.58 : x
  2. Step 2: Convert to fraction form
    289,719.56/434,490.38 = 200,336.58/x
  3. Step 3: Cross multiply
    289,719.56x = 434,490.38 × 200,336.58
  4. Step 4: Simplify right side
    289,719.56x = 87,044,316,772.10
  5. Step 5: Solve for x
    x = 87,044,316,772.10/289,719.56
  6. Step 6: Final answer
    x = 300,443.36

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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.