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Finding the Fourth Proportional to 407,550.06, 611,128.44 and 170,829.18

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Solution

The fourth proportional to 407,550.06, 611,128.44 and 170,829.18 is: 256,161.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,550.06 : 611,128.44 = 170,829.18 : x
  2. Step 2: Convert to fraction form
    407,550.06/611,128.44 = 170,829.18/x
  3. Step 3: Cross multiply
    407,550.06x = 611,128.44 × 170,829.18
  4. Step 4: Simplify right side
    407,550.06x = 104,398,570,279.88
  5. Step 5: Solve for x
    x = 104,398,570,279.88/407,550.06
  6. Step 6: Final answer
    x = 256,161.34

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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.