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Finding the Fourth Proportional to 370,170.78, 555,478.31 and 159,808.51

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Solution

The fourth proportional to 370,170.78, 555,478.31 and 159,808.51 is: 239,808.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,170.78 : 555,478.31 = 159,808.51 : x
  2. Step 2: Convert to fraction form
    370,170.78/555,478.31 = 159,808.51/x
  3. Step 3: Cross multiply
    370,170.78x = 555,478.31 × 159,808.51
  4. Step 4: Simplify right side
    370,170.78x = 88,770,161,058.42
  5. Step 5: Solve for x
    x = 88,770,161,058.42/370,170.78
  6. Step 6: Final answer
    x = 239,808.67

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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.