Home / 256,848.37-354,431.50-143,649.25

Finding the Fourth Proportional to 256,848.37, 354,431.50 and 143,649.25

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Solution

The fourth proportional to 256,848.37, 354,431.50 and 143,649.25 is: 198,225.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,848.37 : 354,431.50 = 143,649.25 : x
  2. Step 2: Convert to fraction form
    256,848.37/354,431.50 = 143,649.25/x
  3. Step 3: Cross multiply
    256,848.37x = 354,431.50 × 143,649.25
  4. Step 4: Simplify right side
    256,848.37x = 50,913,819,151.38
  5. Step 5: Solve for x
    x = 50,913,819,151.38/256,848.37
  6. Step 6: Final answer
    x = 198,225.20

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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.