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Finding the Fourth Proportional to 387,660.95, 534,893.70 and 226,484.87

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Solution

The fourth proportional to 387,660.95, 534,893.70 and 226,484.87 is: 312,503.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,660.95 : 534,893.70 = 226,484.87 : x
  2. Step 2: Convert to fraction form
    387,660.95/534,893.70 = 226,484.87/x
  3. Step 3: Cross multiply
    387,660.95x = 534,893.70 × 226,484.87
  4. Step 4: Simplify right side
    387,660.95x = 121,145,327,433.85
  5. Step 5: Solve for x
    x = 121,145,327,433.85/387,660.95
  6. Step 6: Final answer
    x = 312,503.31

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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.