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Finding the Fourth Proportional to 315,911.44, 435,957.12 and 179,945.35

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Solution

The fourth proportional to 315,911.44, 435,957.12 and 179,945.35 is: 248,324.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,911.44 : 435,957.12 = 179,945.35 : x
  2. Step 2: Convert to fraction form
    315,911.44/435,957.12 = 179,945.35/x
  3. Step 3: Cross multiply
    315,911.44x = 435,957.12 × 179,945.35
  4. Step 4: Simplify right side
    315,911.44x = 78,448,455,453.50
  5. Step 5: Solve for x
    x = 78,448,455,453.50/315,911.44
  6. Step 6: Final answer
    x = 248,324.20

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1.5x scale

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.