Home / 386,604.63-580,132.94-161,946

Finding the Fourth Proportional to 386,604.63, 580,132.94 and 161,946

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Solution

The fourth proportional to 386,604.63, 580,132.94 and 161,946 is: 243,013.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,604.63 : 580,132.94 = 161,946 : x
  2. Step 2: Convert to fraction form
    386,604.63/580,132.94 = 161,946/x
  3. Step 3: Cross multiply
    386,604.63x = 580,132.94 × 161,946
  4. Step 4: Simplify right side
    386,604.63x = 93,950,208,291.51
  5. Step 5: Solve for x
    x = 93,950,208,291.51/386,604.63
  6. Step 6: Final answer
    x = 243,013.67

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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.