Home / 259,819.81-358,581.59-216,135.19

Finding the Fourth Proportional to 259,819.81, 358,581.59 and 216,135.19

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Solution

The fourth proportional to 259,819.81, 358,581.59 and 216,135.19 is: 298,291.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,819.81 : 358,581.59 = 216,135.19 : x
  2. Step 2: Convert to fraction form
    259,819.81/358,581.59 = 216,135.19/x
  3. Step 3: Cross multiply
    259,819.81x = 358,581.59 × 216,135.19
  4. Step 4: Simplify right side
    259,819.81x = 77,502,100,085.15
  5. Step 5: Solve for x
    x = 77,502,100,085.15/259,819.81
  6. Step 6: Final answer
    x = 298,291.73

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Double scale
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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.