Home / 257,030.35-354,701.84-143,853.10

Finding the Fourth Proportional to 257,030.35, 354,701.84 and 143,853.10

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Solution

The fourth proportional to 257,030.35, 354,701.84 and 143,853.10 is: 198,517.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,030.35 : 354,701.84 = 143,853.10 : x
  2. Step 2: Convert to fraction form
    257,030.35/354,701.84 = 143,853.10/x
  3. Step 3: Cross multiply
    257,030.35x = 354,701.84 × 143,853.10
  4. Step 4: Simplify right side
    257,030.35x = 51,024,957,653.68
  5. Step 5: Solve for x
    x = 51,024,957,653.68/257,030.35
  6. Step 6: Final answer
    x = 198,517.25

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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.