Home / 231,004.08-318,784.68-130,401.36

Finding the Fourth Proportional to 231,004.08, 318,784.68 and 130,401.36

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Solution

The fourth proportional to 231,004.08, 318,784.68 and 130,401.36 is: 179,953.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,004.08 : 318,784.68 = 130,401.36 : x
  2. Step 2: Convert to fraction form
    231,004.08/318,784.68 = 130,401.36/x
  3. Step 3: Cross multiply
    231,004.08x = 318,784.68 × 130,401.36
  4. Step 4: Simplify right side
    231,004.08x = 41,569,955,819.16
  5. Step 5: Solve for x
    x = 41,569,955,819.16/231,004.08
  6. Step 6: Final answer
    x = 179,953.34

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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.