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Finding the Fourth Proportional to 379,703.78, 569,556.22 and 155,064.22

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Solution

The fourth proportional to 379,703.78, 569,556.22 and 155,064.22 is: 232,596.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,703.78 : 569,556.22 = 155,064.22 : x
  2. Step 2: Convert to fraction form
    379,703.78/569,556.22 = 155,064.22/x
  3. Step 3: Cross multiply
    379,703.78x = 569,556.22 × 155,064.22
  4. Step 4: Simplify right side
    379,703.78x = 88,317,791,000.45
  5. Step 5: Solve for x
    x = 88,317,791,000.45/379,703.78
  6. Step 6: Final answer
    x = 232,596.55

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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.