Home / 209,044.23-288,322.09-144,620.68

Finding the Fourth Proportional to 209,044.23, 288,322.09 and 144,620.68

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Solution

The fourth proportional to 209,044.23, 288,322.09 and 144,620.68 is: 199,466.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,044.23 : 288,322.09 = 144,620.68 : x
  2. Step 2: Convert to fraction form
    209,044.23/288,322.09 = 144,620.68/x
  3. Step 3: Cross multiply
    209,044.23x = 288,322.09 × 144,620.68
  4. Step 4: Simplify right side
    209,044.23x = 41,697,336,714.82
  5. Step 5: Solve for x
    x = 41,697,336,714.82/209,044.23
  6. Step 6: Final answer
    x = 199,466.58

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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.