Home / 217,431.04-300,128.52-136,993.36

Finding the Fourth Proportional to 217,431.04, 300,128.52 and 136,993.36

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Solution

The fourth proportional to 217,431.04, 300,128.52 and 136,993.36 is: 189,097.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,431.04 : 300,128.52 = 136,993.36 : x
  2. Step 2: Convert to fraction form
    217,431.04/300,128.52 = 136,993.36/x
  3. Step 3: Cross multiply
    217,431.04x = 300,128.52 × 136,993.36
  4. Step 4: Simplify right side
    217,431.04x = 41,115,614,386.63
  5. Step 5: Solve for x
    x = 41,115,614,386.63/217,431.04
  6. Step 6: Final answer
    x = 189,097.26

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1.5x scale

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.