Home / 278,723.18-384,638.94-164,006.20

Finding the Fourth Proportional to 278,723.18, 384,638.94 and 164,006.20

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Solution

The fourth proportional to 278,723.18, 384,638.94 and 164,006.20 is: 226,329.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,723.18 : 384,638.94 = 164,006.20 : x
  2. Step 2: Convert to fraction form
    278,723.18/384,638.94 = 164,006.20/x
  3. Step 3: Cross multiply
    278,723.18x = 384,638.94 × 164,006.20
  4. Step 4: Simplify right side
    278,723.18x = 63,083,170,921.43
  5. Step 5: Solve for x
    x = 63,083,170,921.43/278,723.18
  6. Step 6: Final answer
    x = 226,329.12

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1.5x scale

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.