Home / 256,493.14-384,759.05-76,564.35

Finding the Fourth Proportional to 256,493.14, 384,759.05 and 76,564.35

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Solution

The fourth proportional to 256,493.14, 384,759.05 and 76,564.35 is: 114,852.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,493.14 : 384,759.05 = 76,564.35 : x
  2. Step 2: Convert to fraction form
    256,493.14/384,759.05 = 76,564.35/x
  3. Step 3: Cross multiply
    256,493.14x = 384,759.05 × 76,564.35
  4. Step 4: Simplify right side
    256,493.14x = 29,458,827,531.77
  5. Step 5: Solve for x
    x = 29,458,827,531.77/256,493.14
  6. Step 6: Final answer
    x = 114,852.30

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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.