Home / 256,823.37-354,397.01-143,624.25

Finding the Fourth Proportional to 256,823.37, 354,397.01 and 143,624.25

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Solution

The fourth proportional to 256,823.37, 354,397.01 and 143,624.25 is: 198,190.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,823.37 : 354,397.01 = 143,624.25 : x
  2. Step 2: Convert to fraction form
    256,823.37/354,397.01 = 143,624.25/x
  3. Step 3: Cross multiply
    256,823.37x = 354,397.01 × 143,624.25
  4. Step 4: Simplify right side
    256,823.37x = 50,900,004,045.37
  5. Step 5: Solve for x
    x = 50,900,004,045.37/256,823.37
  6. Step 6: Final answer
    x = 198,190.70

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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.