Home / 278,387.33-384,183.05-163,644.93

Finding the Fourth Proportional to 278,387.33, 384,183.05 and 163,644.93

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Solution

The fourth proportional to 278,387.33, 384,183.05 and 163,644.93 is: 225,835.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,387.33 : 384,183.05 = 163,644.93 : x
  2. Step 2: Convert to fraction form
    278,387.33/384,183.05 = 163,644.93/x
  3. Step 3: Cross multiply
    278,387.33x = 384,183.05 × 163,644.93
  4. Step 4: Simplify right side
    278,387.33x = 62,869,607,506.21
  5. Step 5: Solve for x
    x = 62,869,607,506.21/278,387.33
  6. Step 6: Final answer
    x = 225,835.02

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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.