Home / 210,506.56-290,495.62-115,011.20

Finding the Fourth Proportional to 210,506.56, 290,495.62 and 115,011.20

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Solution

The fourth proportional to 210,506.56, 290,495.62 and 115,011.20 is: 158,713.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,506.56 : 290,495.62 = 115,011.20 : x
  2. Step 2: Convert to fraction form
    210,506.56/290,495.62 = 115,011.20/x
  3. Step 3: Cross multiply
    210,506.56x = 290,495.62 × 115,011.20
  4. Step 4: Simplify right side
    210,506.56x = 33,410,249,850.94
  5. Step 5: Solve for x
    x = 33,410,249,850.94/210,506.56
  6. Step 6: Final answer
    x = 158,713.58

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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.