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Finding the Fourth Proportional to 308,607.51, 425,923.71 and 187,725.33

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Solution

The fourth proportional to 308,607.51, 425,923.71 and 187,725.33 is: 259,088.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,607.51 : 425,923.71 = 187,725.33 : x
  2. Step 2: Convert to fraction form
    308,607.51/425,923.71 = 187,725.33/x
  3. Step 3: Cross multiply
    308,607.51x = 425,923.71 × 187,725.33
  4. Step 4: Simplify right side
    308,607.51x = 79,956,669,014.57
  5. Step 5: Solve for x
    x = 79,956,669,014.57/308,607.51
  6. Step 6: Final answer
    x = 259,088.54

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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.