Home / 217,316.34-299,959.10-131,261.64

Finding the Fourth Proportional to 217,316.34, 299,959.10 and 131,261.64

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Solution

The fourth proportional to 217,316.34, 299,959.10 and 131,261.64 is: 181,178.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,316.34 : 299,959.10 = 131,261.64 : x
  2. Step 2: Convert to fraction form
    217,316.34/299,959.10 = 131,261.64/x
  3. Step 3: Cross multiply
    217,316.34x = 299,959.10 × 131,261.64
  4. Step 4: Simplify right side
    217,316.34x = 39,373,122,742.62
  5. Step 5: Solve for x
    x = 39,373,122,742.62/217,316.34
  6. Step 6: Final answer
    x = 181,178.84

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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.