Home / 490,738.39-736,107.75-153,805.18

Finding the Fourth Proportional to 490,738.39, 736,107.75 and 153,805.18

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Solution

The fourth proportional to 490,738.39, 736,107.75 and 153,805.18 is: 230,707.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,738.39 : 736,107.75 = 153,805.18 : x
  2. Step 2: Convert to fraction form
    490,738.39/736,107.75 = 153,805.18/x
  3. Step 3: Cross multiply
    490,738.39x = 736,107.75 × 153,805.18
  4. Step 4: Simplify right side
    490,738.39x = 113,217,184,988.15
  5. Step 5: Solve for x
    x = 113,217,184,988.15/490,738.39
  6. Step 6: Final answer
    x = 230,707.82

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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.