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Finding the Fourth Proportional to 228,637.07, 315,450.82 and 147,936.77

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Solution

The fourth proportional to 228,637.07, 315,450.82 and 147,936.77 is: 204,108.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,637.07 : 315,450.82 = 147,936.77 : x
  2. Step 2: Convert to fraction form
    228,637.07/315,450.82 = 147,936.77/x
  3. Step 3: Cross multiply
    228,637.07x = 315,450.82 × 147,936.77
  4. Step 4: Simplify right side
    228,637.07x = 46,666,775,404.65
  5. Step 5: Solve for x
    x = 46,666,775,404.65/228,637.07
  6. Step 6: Final answer
    x = 204,108.53

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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.