Home / 210,422.72-290,378.66-114,929.76

Finding the Fourth Proportional to 210,422.72, 290,378.66 and 114,929.76

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Solution

The fourth proportional to 210,422.72, 290,378.66 and 114,929.76 is: 158,600.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,422.72 : 290,378.66 = 114,929.76 : x
  2. Step 2: Convert to fraction form
    210,422.72/290,378.66 = 114,929.76/x
  3. Step 3: Cross multiply
    210,422.72x = 290,378.66 × 114,929.76
  4. Step 4: Simplify right side
    210,422.72x = 33,373,149,702.92
  5. Step 5: Solve for x
    x = 33,373,149,702.92/210,422.72
  6. Step 6: Final answer
    x = 158,600.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.