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Finding the Fourth Proportional to 369,063.06, 509,344.65 and 225,917.70

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Solution

The fourth proportional to 369,063.06, 509,344.65 and 225,917.70 is: 311,789.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,063.06 : 509,344.65 = 225,917.70 : x
  2. Step 2: Convert to fraction form
    369,063.06/509,344.65 = 225,917.70/x
  3. Step 3: Cross multiply
    369,063.06x = 509,344.65 × 225,917.70
  4. Step 4: Simplify right side
    369,063.06x = 115,069,971,835.31
  5. Step 5: Solve for x
    x = 115,069,971,835.31/369,063.06
  6. Step 6: Final answer
    x = 311,789.46

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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.