Home / 386,743.36-580,143-161,877.52

Finding the Fourth Proportional to 386,743.36, 580,143 and 161,877.52

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Solution

The fourth proportional to 386,743.36, 580,143 and 161,877.52 is: 242,827.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,743.36 : 580,143 = 161,877.52 : x
  2. Step 2: Convert to fraction form
    386,743.36/580,143 = 161,877.52/x
  3. Step 3: Cross multiply
    386,743.36x = 580,143 × 161,877.52
  4. Step 4: Simplify right side
    386,743.36x = 93,912,110,085.36
  5. Step 5: Solve for x
    x = 93,912,110,085.36/386,743.36
  6. Step 6: Final answer
    x = 242,827.98

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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.