Home / 256,678.04-354,209.82-143,511.32

Finding the Fourth Proportional to 256,678.04, 354,209.82 and 143,511.32

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Solution

The fourth proportional to 256,678.04, 354,209.82 and 143,511.32 is: 198,042.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,678.04 : 354,209.82 = 143,511.32 : x
  2. Step 2: Convert to fraction form
    256,678.04/354,209.82 = 143,511.32/x
  3. Step 3: Cross multiply
    256,678.04x = 354,209.82 × 143,511.32
  4. Step 4: Simplify right side
    256,678.04x = 50,833,118,825.16
  5. Step 5: Solve for x
    x = 50,833,118,825.16/256,678.04
  6. Step 6: Final answer
    x = 198,042.34

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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.