Home / 257,040.35-354,715.63-143,863.10

Finding the Fourth Proportional to 257,040.35, 354,715.63 and 143,863.10

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Solution

The fourth proportional to 257,040.35, 354,715.63 and 143,863.10 is: 198,531.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,040.35 : 354,715.63 = 143,863.10 : x
  2. Step 2: Convert to fraction form
    257,040.35/354,715.63 = 143,863.10/x
  3. Step 3: Cross multiply
    257,040.35x = 354,715.63 × 143,863.10
  4. Step 4: Simplify right side
    257,040.35x = 51,030,490,150.25
  5. Step 5: Solve for x
    x = 51,030,490,150.25/257,040.35
  6. Step 6: Final answer
    x = 198,531.05

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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.