Home / 384,849.08-531,092.50-215,083.20

Finding the Fourth Proportional to 384,849.08, 531,092.50 and 215,083.20

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Solution

The fourth proportional to 384,849.08, 531,092.50 and 215,083.20 is: 296,815.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,849.08 : 531,092.50 = 215,083.20 : x
  2. Step 2: Convert to fraction form
    384,849.08/531,092.50 = 215,083.20/x
  3. Step 3: Cross multiply
    384,849.08x = 531,092.50 × 215,083.20
  4. Step 4: Simplify right side
    384,849.08x = 114,229,074,396
  5. Step 5: Solve for x
    x = 114,229,074,396/384,849.08
  6. Step 6: Final answer
    x = 296,815.25

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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.