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Finding the Fourth Proportional to 270,583.39, 405,486.78 and 152,005.15

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Solution

The fourth proportional to 270,583.39, 405,486.78 and 152,005.15 is: 227,789.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,583.39 : 405,486.78 = 152,005.15 : x
  2. Step 2: Convert to fraction form
    270,583.39/405,486.78 = 152,005.15/x
  3. Step 3: Cross multiply
    270,583.39x = 405,486.78 × 152,005.15
  4. Step 4: Simplify right side
    270,583.39x = 61,636,078,816.92
  5. Step 5: Solve for x
    x = 61,636,078,816.92/270,583.39
  6. Step 6: Final answer
    x = 227,789.59

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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.