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Finding the Fourth Proportional to 375,750.54, 518,556.60 and 214,657.89

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Solution

The fourth proportional to 375,750.54, 518,556.60 and 214,657.89 is: 296,239.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,750.54 : 518,556.60 = 214,657.89 : x
  2. Step 2: Convert to fraction form
    375,750.54/518,556.60 = 214,657.89/x
  3. Step 3: Cross multiply
    375,750.54x = 518,556.60 × 214,657.89
  4. Step 4: Simplify right side
    375,750.54x = 111,312,265,601.57
  5. Step 5: Solve for x
    x = 111,312,265,601.57/375,750.54
  6. Step 6: Final answer
    x = 296,239.80

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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.