Home / 256,069.32-384,104.07-87,591.27

Finding the Fourth Proportional to 256,069.32, 384,104.07 and 87,591.27

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Solution

The fourth proportional to 256,069.32, 384,104.07 and 87,591.27 is: 131,386.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,069.32 : 384,104.07 = 87,591.27 : x
  2. Step 2: Convert to fraction form
    256,069.32/384,104.07 = 87,591.27/x
  3. Step 3: Cross multiply
    256,069.32x = 384,104.07 × 87,591.27
  4. Step 4: Simplify right side
    256,069.32x = 33,644,163,303.47
  5. Step 5: Solve for x
    x = 33,644,163,303.47/256,069.32
  6. Step 6: Final answer
    x = 131,386.94

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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.