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Finding the Fourth Proportional to 269,889.51, 404,834.78 and 70,209.58

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Solution

The fourth proportional to 269,889.51, 404,834.78 and 70,209.58 is: 105,314.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,889.51 : 404,834.78 = 70,209.58 : x
  2. Step 2: Convert to fraction form
    269,889.51/404,834.78 = 70,209.58/x
  3. Step 3: Cross multiply
    269,889.51x = 404,834.78 × 70,209.58
  4. Step 4: Simplify right side
    269,889.51x = 28,423,279,873.19
  5. Step 5: Solve for x
    x = 28,423,279,873.19/269,889.51
  6. Step 6: Final answer
    x = 105,314.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.