Home / 386,372.79-533,143.67-214,288.70

Finding the Fourth Proportional to 386,372.79, 533,143.67 and 214,288.70

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Solution

The fourth proportional to 386,372.79, 533,143.67 and 214,288.70 is: 295,690.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,372.79 : 533,143.67 = 214,288.70 : x
  2. Step 2: Convert to fraction form
    386,372.79/533,143.67 = 214,288.70/x
  3. Step 3: Cross multiply
    386,372.79x = 533,143.67 × 214,288.70
  4. Step 4: Simplify right side
    386,372.79x = 114,246,660,220.37
  5. Step 5: Solve for x
    x = 114,246,660,220.37/386,372.79
  6. Step 6: Final answer
    x = 295,690.23

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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.