Home / 385,548.12-532,035.54-215,749.44

Finding the Fourth Proportional to 385,548.12, 532,035.54 and 215,749.44

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Solution

The fourth proportional to 385,548.12, 532,035.54 and 215,749.44 is: 297,722.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,548.12 : 532,035.54 = 215,749.44 : x
  2. Step 2: Convert to fraction form
    385,548.12/532,035.54 = 215,749.44/x
  3. Step 3: Cross multiply
    385,548.12x = 532,035.54 × 215,749.44
  4. Step 4: Simplify right side
    385,548.12x = 114,786,369,815.10
  5. Step 5: Solve for x
    x = 114,786,369,815.10/385,548.12
  6. Step 6: Final answer
    x = 297,722.55

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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.