Home / 315,255.35-435,090-179,309.81

Finding the Fourth Proportional to 315,255.35, 435,090 and 179,309.81

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Solution

The fourth proportional to 315,255.35, 435,090 and 179,309.81 is: 247,468.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,255.35 : 435,090 = 179,309.81 : x
  2. Step 2: Convert to fraction form
    315,255.35/435,090 = 179,309.81/x
  3. Step 3: Cross multiply
    315,255.35x = 435,090 × 179,309.81
  4. Step 4: Simplify right side
    315,255.35x = 78,015,903,057.45
  5. Step 5: Solve for x
    x = 78,015,903,057.45/315,255.35
  6. Step 6: Final answer
    x = 247,468.93

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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.