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Finding the Fourth Proportional to 256,783.26, 384,924.57 and 107,066.34

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Solution

The fourth proportional to 256,783.26, 384,924.57 and 107,066.34 is: 160,495.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,783.26 : 384,924.57 = 107,066.34 : x
  2. Step 2: Convert to fraction form
    256,783.26/384,924.57 = 107,066.34/x
  3. Step 3: Cross multiply
    256,783.26x = 384,924.57 × 107,066.34
  4. Step 4: Simplify right side
    256,783.26x = 41,212,464,885.97
  5. Step 5: Solve for x
    x = 41,212,464,885.97/256,783.26
  6. Step 6: Final answer
    x = 160,495.14

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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.