Home / 257,185.28-354,920.94-153,926.22

Finding the Fourth Proportional to 257,185.28, 354,920.94 and 153,926.22

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Solution

The fourth proportional to 257,185.28, 354,920.94 and 153,926.22 is: 212,421.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,185.28 : 354,920.94 = 153,926.22 : x
  2. Step 2: Convert to fraction form
    257,185.28/354,920.94 = 153,926.22/x
  3. Step 3: Cross multiply
    257,185.28x = 354,920.94 × 153,926.22
  4. Step 4: Simplify right side
    257,185.28x = 54,631,638,693.05
  5. Step 5: Solve for x
    x = 54,631,638,693.05/257,185.28
  6. Step 6: Final answer
    x = 212,421.33

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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.