Home / 210,666.72-290,725.24-115,180.50

Finding the Fourth Proportional to 210,666.72, 290,725.24 and 115,180.50

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Solution

The fourth proportional to 210,666.72, 290,725.24 and 115,180.50 is: 158,951.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,666.72 : 290,725.24 = 115,180.50 : x
  2. Step 2: Convert to fraction form
    210,666.72/290,725.24 = 115,180.50/x
  3. Step 3: Cross multiply
    210,666.72x = 290,725.24 × 115,180.50
  4. Step 4: Simplify right side
    210,666.72x = 33,485,878,505.82
  5. Step 5: Solve for x
    x = 33,485,878,505.82/210,666.72
  6. Step 6: Final answer
    x = 158,951.91

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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.