Home / 210,964.37-291,131.15-115,477.11

Finding the Fourth Proportional to 210,964.37, 291,131.15 and 115,477.11

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Solution

The fourth proportional to 210,964.37, 291,131.15 and 115,477.11 is: 159,358.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,964.37 : 291,131.15 = 115,477.11 : x
  2. Step 2: Convert to fraction form
    210,964.37/291,131.15 = 115,477.11/x
  3. Step 3: Cross multiply
    210,964.37x = 291,131.15 × 115,477.11
  4. Step 4: Simplify right side
    210,964.37x = 33,618,983,255.59
  5. Step 5: Solve for x
    x = 33,618,983,255.59/210,964.37
  6. Step 6: Final answer
    x = 159,358.59

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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.