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Finding the Fourth Proportional to 370,172.78, 555,481.31 and 159,810.51

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Solution

The fourth proportional to 370,172.78, 555,481.31 and 159,810.51 is: 239,811.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,172.78 : 555,481.31 = 159,810.51 : x
  2. Step 2: Convert to fraction form
    370,172.78/555,481.31 = 159,810.51/x
  3. Step 3: Cross multiply
    370,172.78x = 555,481.31 × 159,810.51
  4. Step 4: Simplify right side
    370,172.78x = 88,771,750,647.52
  5. Step 5: Solve for x
    x = 88,771,750,647.52/370,172.78
  6. Step 6: Final answer
    x = 239,811.67

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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.