Home / 210,698.84-290,764.49-115,206.32

Finding the Fourth Proportional to 210,698.84, 290,764.49 and 115,206.32

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Solution

The fourth proportional to 210,698.84, 290,764.49 and 115,206.32 is: 158,984.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,698.84 : 290,764.49 = 115,206.32 : x
  2. Step 2: Convert to fraction form
    210,698.84/290,764.49 = 115,206.32/x
  3. Step 3: Cross multiply
    210,698.84x = 290,764.49 × 115,206.32
  4. Step 4: Simplify right side
    210,698.84x = 33,497,904,849.72
  5. Step 5: Solve for x
    x = 33,497,904,849.72/210,698.84
  6. Step 6: Final answer
    x = 158,984.77

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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.