Home / 256,292.19-384,448.82-87,928.29

Finding the Fourth Proportional to 256,292.19, 384,448.82 and 87,928.29

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Solution

The fourth proportional to 256,292.19, 384,448.82 and 87,928.29 is: 131,896.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,292.19 : 384,448.82 = 87,928.29 : x
  2. Step 2: Convert to fraction form
    256,292.19/384,448.82 = 87,928.29/x
  3. Step 3: Cross multiply
    256,292.19x = 384,448.82 × 87,928.29
  4. Step 4: Simplify right side
    256,292.19x = 33,803,926,895.48
  5. Step 5: Solve for x
    x = 33,803,926,895.48/256,292.19
  6. Step 6: Final answer
    x = 131,896.05

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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.