Home / 279,742.64-385,739.34-188,940.98

Finding the Fourth Proportional to 279,742.64, 385,739.34 and 188,940.98

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Solution

The fourth proportional to 279,742.64, 385,739.34 and 188,940.98 is: 260,532.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,742.64 : 385,739.34 = 188,940.98 : x
  2. Step 2: Convert to fraction form
    279,742.64/385,739.34 = 188,940.98/x
  3. Step 3: Cross multiply
    279,742.64x = 385,739.34 × 188,940.98
  4. Step 4: Simplify right side
    279,742.64x = 72,881,968,924.15
  5. Step 5: Solve for x
    x = 72,881,968,924.15/279,742.64
  6. Step 6: Final answer
    x = 260,532.21

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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.