Home / 288,964.36-398,749.08-161,615.35

Finding the Fourth Proportional to 288,964.36, 398,749.08 and 161,615.35

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Solution

The fourth proportional to 288,964.36, 398,749.08 and 161,615.35 is: 223,017.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,964.36 : 398,749.08 = 161,615.35 : x
  2. Step 2: Convert to fraction form
    288,964.36/398,749.08 = 161,615.35/x
  3. Step 3: Cross multiply
    288,964.36x = 398,749.08 × 161,615.35
  4. Step 4: Simplify right side
    288,964.36x = 64,443,972,126.38
  5. Step 5: Solve for x
    x = 64,443,972,126.38/288,964.36
  6. Step 6: Final answer
    x = 223,017.03

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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.