Home / 257,028.60-354,699.42-143,851.35

Finding the Fourth Proportional to 257,028.60, 354,699.42 and 143,851.35

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Solution

The fourth proportional to 257,028.60, 354,699.42 and 143,851.35 is: 198,514.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,028.60 : 354,699.42 = 143,851.35 : x
  2. Step 2: Convert to fraction form
    257,028.60/354,699.42 = 143,851.35/x
  3. Step 3: Cross multiply
    257,028.60x = 354,699.42 × 143,851.35
  4. Step 4: Simplify right side
    257,028.60x = 51,023,990,411.22
  5. Step 5: Solve for x
    x = 51,023,990,411.22/257,028.60
  6. Step 6: Final answer
    x = 198,514.84

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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.