Home / 210,975.57-291,146.72-115,488.36

Finding the Fourth Proportional to 210,975.57, 291,146.72 and 115,488.36

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Solution

The fourth proportional to 210,975.57, 291,146.72 and 115,488.36 is: 159,374.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,975.57 : 291,146.72 = 115,488.36 : x
  2. Step 2: Convert to fraction form
    210,975.57/291,146.72 = 115,488.36/x
  3. Step 3: Cross multiply
    210,975.57x = 291,146.72 × 115,488.36
  4. Step 4: Simplify right side
    210,975.57x = 33,624,057,212.18
  5. Step 5: Solve for x
    x = 33,624,057,212.18/210,975.57
  6. Step 6: Final answer
    x = 159,374.17

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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.