Home / 303,669.15-455,633.33-145,816.35

Finding the Fourth Proportional to 303,669.15, 455,633.33 and 145,816.35

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Solution

The fourth proportional to 303,669.15, 455,633.33 and 145,816.35 is: 218,786.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,669.15 : 455,633.33 = 145,816.35 : x
  2. Step 2: Convert to fraction form
    303,669.15/455,633.33 = 145,816.35/x
  3. Step 3: Cross multiply
    303,669.15x = 455,633.33 × 145,816.35
  4. Step 4: Simplify right side
    303,669.15x = 66,438,788,389.86
  5. Step 5: Solve for x
    x = 66,438,788,389.86/303,669.15
  6. Step 6: Final answer
    x = 218,786.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.