Home / 256,583.04-354,078.48-143,416.32

Finding the Fourth Proportional to 256,583.04, 354,078.48 and 143,416.32

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Solution

The fourth proportional to 256,583.04, 354,078.48 and 143,416.32 is: 197,911.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,583.04 : 354,078.48 = 143,416.32 : x
  2. Step 2: Convert to fraction form
    256,583.04/354,078.48 = 143,416.32/x
  3. Step 3: Cross multiply
    256,583.04x = 354,078.48 × 143,416.32
  4. Step 4: Simplify right side
    256,583.04x = 50,780,632,592.79
  5. Step 5: Solve for x
    x = 50,780,632,592.79/256,583.04
  6. Step 6: Final answer
    x = 197,911.10

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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.