Home / 455,149.92-628,095-251,198.08

Finding the Fourth Proportional to 455,149.92, 628,095 and 251,198.08

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Solution

The fourth proportional to 455,149.92, 628,095 and 251,198.08 is: 346,646.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,149.92 : 628,095 = 251,198.08 : x
  2. Step 2: Convert to fraction form
    455,149.92/628,095 = 251,198.08/x
  3. Step 3: Cross multiply
    455,149.92x = 628,095 × 251,198.08
  4. Step 4: Simplify right side
    455,149.92x = 157,776,258,057.60
  5. Step 5: Solve for x
    x = 157,776,258,057.60/455,149.92
  6. Step 6: Final answer
    x = 346,646.79

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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.