Home / 211,020.55-291,208.43-115,533.29

Finding the Fourth Proportional to 211,020.55, 291,208.43 and 115,533.29

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Solution

The fourth proportional to 211,020.55, 291,208.43 and 115,533.29 is: 159,435.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,020.55 : 291,208.43 = 115,533.29 : x
  2. Step 2: Convert to fraction form
    211,020.55/291,208.43 = 115,533.29/x
  3. Step 3: Cross multiply
    211,020.55x = 291,208.43 × 115,533.29
  4. Step 4: Simplify right side
    211,020.55x = 33,644,267,993.63
  5. Step 5: Solve for x
    x = 33,644,267,993.63/211,020.55
  6. Step 6: Final answer
    x = 159,435.98

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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.