Home / 256,828.89-354,417.04-142,104.54

Finding the Fourth Proportional to 256,828.89, 354,417.04 and 142,104.54

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Solution

The fourth proportional to 256,828.89, 354,417.04 and 142,104.54 is: 196,100.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,828.89 : 354,417.04 = 142,104.54 : x
  2. Step 2: Convert to fraction form
    256,828.89/354,417.04 = 142,104.54/x
  3. Step 3: Cross multiply
    256,828.89x = 354,417.04 × 142,104.54
  4. Step 4: Simplify right side
    256,828.89x = 50,364,270,437.36
  5. Step 5: Solve for x
    x = 50,364,270,437.36/256,828.89
  6. Step 6: Final answer
    x = 196,100.49

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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.