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Finding the Fourth Proportional to 315,588.35, 435,495.54 and 179,621.87

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Solution

The fourth proportional to 315,588.35, 435,495.54 and 179,621.87 is: 247,868.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,588.35 : 435,495.54 = 179,621.87 : x
  2. Step 2: Convert to fraction form
    315,588.35/435,495.54 = 179,621.87/x
  3. Step 3: Cross multiply
    315,588.35x = 435,495.54 × 179,621.87
  4. Step 4: Simplify right side
    315,588.35x = 78,224,520,195.87
  5. Step 5: Solve for x
    x = 78,224,520,195.87/315,588.35
  6. Step 6: Final answer
    x = 247,868.85

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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.