Home / 210,965.37-290,857.23-134,456.55

Finding the Fourth Proportional to 210,965.37, 290,857.23 and 134,456.55

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Solution

The fourth proportional to 210,965.37, 290,857.23 and 134,456.55 is: 185,374.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,965.37 : 290,857.23 = 134,456.55 : x
  2. Step 2: Convert to fraction form
    210,965.37/290,857.23 = 134,456.55/x
  3. Step 3: Cross multiply
    210,965.37x = 290,857.23 × 134,456.55
  4. Step 4: Simplify right side
    210,965.37x = 39,107,659,688.36
  5. Step 5: Solve for x
    x = 39,107,659,688.36/210,965.37
  6. Step 6: Final answer
    x = 185,374.78

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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.