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Finding the Fourth Proportional to 172,202.67, 258,369.55 and 155,504.93

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Solution

The fourth proportional to 172,202.67, 258,369.55 and 155,504.93 is: 233,316.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,202.67 : 258,369.55 = 155,504.93 : x
  2. Step 2: Convert to fraction form
    172,202.67/258,369.55 = 155,504.93/x
  3. Step 3: Cross multiply
    172,202.67x = 258,369.55 × 155,504.93
  4. Step 4: Simplify right side
    172,202.67x = 40,177,737,106.27
  5. Step 5: Solve for x
    x = 40,177,737,106.27/172,202.67
  6. Step 6: Final answer
    x = 233,316.57

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1.5x scale

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.