Home / 240,245.85-361,023.51-128,006.28

Finding the Fourth Proportional to 240,245.85, 361,023.51 and 128,006.28

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Solution

The fourth proportional to 240,245.85, 361,023.51 and 128,006.28 is: 192,358.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,245.85 : 361,023.51 = 128,006.28 : x
  2. Step 2: Convert to fraction form
    240,245.85/361,023.51 = 128,006.28/x
  3. Step 3: Cross multiply
    240,245.85x = 361,023.51 × 128,006.28
  4. Step 4: Simplify right side
    240,245.85x = 46,213,276,507.64
  5. Step 5: Solve for x
    x = 46,213,276,507.64/240,245.85
  6. Step 6: Final answer
    x = 192,358.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.