Home / 279,213.47-385,303.39-151,886.33

Finding the Fourth Proportional to 279,213.47, 385,303.39 and 151,886.33

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Solution

The fourth proportional to 279,213.47, 385,303.39 and 151,886.33 is: 209,597.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,213.47 : 385,303.39 = 151,886.33 : x
  2. Step 2: Convert to fraction form
    279,213.47/385,303.39 = 151,886.33/x
  3. Step 3: Cross multiply
    279,213.47x = 385,303.39 × 151,886.33
  4. Step 4: Simplify right side
    279,213.47x = 58,522,317,843.66
  5. Step 5: Solve for x
    x = 58,522,317,843.66/279,213.47
  6. Step 6: Final answer
    x = 209,597.04

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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.