Home / 210,441-290,406.86-114,947.72

Finding the Fourth Proportional to 210,441, 290,406.86 and 114,947.72

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Solution

The fourth proportional to 210,441, 290,406.86 and 114,947.72 is: 158,626.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,441 : 290,406.86 = 114,947.72 : x
  2. Step 2: Convert to fraction form
    210,441/290,406.86 = 114,947.72/x
  3. Step 3: Cross multiply
    210,441x = 290,406.86 × 114,947.72
  4. Step 4: Simplify right side
    210,441x = 33,381,606,429.36
  5. Step 5: Solve for x
    x = 33,381,606,429.36/210,441
  6. Step 6: Final answer
    x = 158,626.91

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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.