Home / 210,272.94-315,086.43-142,717.19

Finding the Fourth Proportional to 210,272.94, 315,086.43 and 142,717.19

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Solution

The fourth proportional to 210,272.94, 315,086.43 and 142,717.19 is: 213,856.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,272.94 : 315,086.43 = 142,717.19 : x
  2. Step 2: Convert to fraction form
    210,272.94/315,086.43 = 142,717.19/x
  3. Step 3: Cross multiply
    210,272.94x = 315,086.43 × 142,717.19
  4. Step 4: Simplify right side
    210,272.94x = 44,968,250,684.45
  5. Step 5: Solve for x
    x = 44,968,250,684.45/210,272.94
  6. Step 6: Final answer
    x = 213,856.57

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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.