Home / 256,897.34-354,511.03-142,180.79

Finding the Fourth Proportional to 256,897.34, 354,511.03 and 142,180.79

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Solution

The fourth proportional to 256,897.34, 354,511.03 and 142,180.79 is: 196,205.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,897.34 : 354,511.03 = 142,180.79 : x
  2. Step 2: Convert to fraction form
    256,897.34/354,511.03 = 142,180.79/x
  3. Step 3: Cross multiply
    256,897.34x = 354,511.03 × 142,180.79
  4. Step 4: Simplify right side
    256,897.34x = 50,404,658,309.11
  5. Step 5: Solve for x
    x = 50,404,658,309.11/256,897.34
  6. Step 6: Final answer
    x = 196,205.45

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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.