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Finding the Fourth Proportional to 357,433.43, 493,134.76 and 228,447.37

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Solution

The fourth proportional to 357,433.43, 493,134.76 and 228,447.37 is: 315,178.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,433.43 : 493,134.76 = 228,447.37 : x
  2. Step 2: Convert to fraction form
    357,433.43/493,134.76 = 228,447.37/x
  3. Step 3: Cross multiply
    357,433.43x = 493,134.76 × 228,447.37
  4. Step 4: Simplify right side
    357,433.43x = 112,655,339,879.56
  5. Step 5: Solve for x
    x = 112,655,339,879.56/357,433.43
  6. Step 6: Final answer
    x = 315,178.53

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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.