Home / 257,039.35-354,714.26-143,862.10

Finding the Fourth Proportional to 257,039.35, 354,714.26 and 143,862.10

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Solution

The fourth proportional to 257,039.35, 354,714.26 and 143,862.10 is: 198,529.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,039.35 : 354,714.26 = 143,862.10 : x
  2. Step 2: Convert to fraction form
    257,039.35/354,714.26 = 143,862.10/x
  3. Step 3: Cross multiply
    257,039.35x = 354,714.26 × 143,862.10
  4. Step 4: Simplify right side
    257,039.35x = 51,029,936,737.45
  5. Step 5: Solve for x
    x = 51,029,936,737.45/257,039.35
  6. Step 6: Final answer
    x = 198,529.67

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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.