Home / 283,780.71-391,210.33-223,246.14

Finding the Fourth Proportional to 283,780.71, 391,210.33 and 223,246.14

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Solution

The fourth proportional to 283,780.71, 391,210.33 and 223,246.14 is: 307,759.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,780.71 : 391,210.33 = 223,246.14 : x
  2. Step 2: Convert to fraction form
    283,780.71/391,210.33 = 223,246.14/x
  3. Step 3: Cross multiply
    283,780.71x = 391,210.33 × 223,246.14
  4. Step 4: Simplify right side
    283,780.71x = 87,336,196,100.63
  5. Step 5: Solve for x
    x = 87,336,196,100.63/283,780.71
  6. Step 6: Final answer
    x = 307,759.45

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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.