Home / 211,048.89-291,247.41-115,555.56

Finding the Fourth Proportional to 211,048.89, 291,247.41 and 115,555.56

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Solution

The fourth proportional to 211,048.89, 291,247.41 and 115,555.56 is: 159,466.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,048.89 : 291,247.41 = 115,555.56 : x
  2. Step 2: Convert to fraction form
    211,048.89/291,247.41 = 115,555.56/x
  3. Step 3: Cross multiply
    211,048.89x = 291,247.41 × 115,555.56
  4. Step 4: Simplify right side
    211,048.89x = 33,655,257,561.10
  5. Step 5: Solve for x
    x = 33,655,257,561.10/211,048.89
  6. Step 6: Final answer
    x = 159,466.64

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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.