Home / 256,918.08-354,547.26-143,740.92

Finding the Fourth Proportional to 256,918.08, 354,547.26 and 143,740.92

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Solution

The fourth proportional to 256,918.08, 354,547.26 and 143,740.92 is: 198,362.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,918.08 : 354,547.26 = 143,740.92 : x
  2. Step 2: Convert to fraction form
    256,918.08/354,547.26 = 143,740.92/x
  3. Step 3: Cross multiply
    256,918.08x = 354,547.26 × 143,740.92
  4. Step 4: Simplify right side
    256,918.08x = 50,962,949,335.88
  5. Step 5: Solve for x
    x = 50,962,949,335.88/256,918.08
  6. Step 6: Final answer
    x = 198,362.64

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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.