Home / 397,916.92-596,816.52-145,138.24

Finding the Fourth Proportional to 397,916.92, 596,816.52 and 145,138.24

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Solution

The fourth proportional to 397,916.92, 596,816.52 and 145,138.24 is: 217,685.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,916.92 : 596,816.52 = 145,138.24 : x
  2. Step 2: Convert to fraction form
    397,916.92/596,816.52 = 145,138.24/x
  3. Step 3: Cross multiply
    397,916.92x = 596,816.52 × 145,138.24
  4. Step 4: Simplify right side
    397,916.92x = 86,620,899,315.72
  5. Step 5: Solve for x
    x = 86,620,899,315.72/397,916.92
  6. Step 6: Final answer
    x = 217,685.89

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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.