Home / 211,058.28-291,288.06-120,393.36

Finding the Fourth Proportional to 211,058.28, 291,288.06 and 120,393.36

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Solution

The fourth proportional to 211,058.28, 291,288.06 and 120,393.36 is: 166,158.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,058.28 : 291,288.06 = 120,393.36 : x
  2. Step 2: Convert to fraction form
    211,058.28/291,288.06 = 120,393.36/x
  3. Step 3: Cross multiply
    211,058.28x = 291,288.06 × 120,393.36
  4. Step 4: Simplify right side
    211,058.28x = 35,069,148,271.28
  5. Step 5: Solve for x
    x = 35,069,148,271.28/211,058.28
  6. Step 6: Final answer
    x = 166,158.60

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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.