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Finding the Fourth Proportional to 270,199.72, 405,323.34 and 70,518.52

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Solution

The fourth proportional to 270,199.72, 405,323.34 and 70,518.52 is: 105,783.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,199.72 : 405,323.34 = 70,518.52 : x
  2. Step 2: Convert to fraction form
    270,199.72/405,323.34 = 70,518.52/x
  3. Step 3: Cross multiply
    270,199.72x = 405,323.34 × 70,518.52
  4. Step 4: Simplify right side
    270,199.72x = 28,582,802,058.26
  5. Step 5: Solve for x
    x = 28,582,802,058.26/270,199.72
  6. Step 6: Final answer
    x = 105,783.98

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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.