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Finding the Fourth Proportional to 378,488.04, 522,339.30 and 219,512.04

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Solution

The fourth proportional to 378,488.04, 522,339.30 and 219,512.04 is: 302,941.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,488.04 : 522,339.30 = 219,512.04 : x
  2. Step 2: Convert to fraction form
    378,488.04/522,339.30 = 219,512.04/x
  3. Step 3: Cross multiply
    378,488.04x = 522,339.30 × 219,512.04
  4. Step 4: Simplify right side
    378,488.04x = 114,659,765,315.17
  5. Step 5: Solve for x
    x = 114,659,765,315.17/378,488.04
  6. Step 6: Final answer
    x = 302,941.58

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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.