Home / 347,129.21-478,182.06-295,975.28

Finding the Fourth Proportional to 347,129.21, 478,182.06 and 295,975.28

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Solution

The fourth proportional to 347,129.21, 478,182.06 and 295,975.28 is: 407,715.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,129.21 : 478,182.06 = 295,975.28 : x
  2. Step 2: Convert to fraction form
    347,129.21/478,182.06 = 295,975.28/x
  3. Step 3: Cross multiply
    347,129.21x = 478,182.06 × 295,975.28
  4. Step 4: Simplify right side
    347,129.21x = 141,530,066,708.57
  5. Step 5: Solve for x
    x = 141,530,066,708.57/347,129.21
  6. Step 6: Final answer
    x = 407,715.81

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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.