Home / 353,272.32-487,399.68-219,110.40

Finding the Fourth Proportional to 353,272.32, 487,399.68 and 219,110.40

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Solution

The fourth proportional to 353,272.32, 487,399.68 and 219,110.40 is: 302,300.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,272.32 : 487,399.68 = 219,110.40 : x
  2. Step 2: Convert to fraction form
    353,272.32/487,399.68 = 219,110.40/x
  3. Step 3: Cross multiply
    353,272.32x = 487,399.68 × 219,110.40
  4. Step 4: Simplify right side
    353,272.32x = 106,794,338,844.67
  5. Step 5: Solve for x
    x = 106,794,338,844.67/353,272.32
  6. Step 6: Final answer
    x = 302,300.33

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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.