Home / 289,835.70-434,551.05-171,446.10

Finding the Fourth Proportional to 289,835.70, 434,551.05 and 171,446.10

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Solution

The fourth proportional to 289,835.70, 434,551.05 and 171,446.10 is: 257,049.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,835.70 : 434,551.05 = 171,446.10 : x
  2. Step 2: Convert to fraction form
    289,835.70/434,551.05 = 171,446.10/x
  3. Step 3: Cross multiply
    289,835.70x = 434,551.05 × 171,446.10
  4. Step 4: Simplify right side
    289,835.70x = 74,502,082,773.41
  5. Step 5: Solve for x
    x = 74,502,082,773.41/289,835.70
  6. Step 6: Final answer
    x = 257,049.37

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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.