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Finding the Fourth Proportional to 270,634.50, 405,953.43 and 70,953.09

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Solution

The fourth proportional to 270,634.50, 405,953.43 and 70,953.09 is: 106,430.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,634.50 : 405,953.43 = 70,953.09 : x
  2. Step 2: Convert to fraction form
    270,634.50/405,953.43 = 70,953.09/x
  3. Step 3: Cross multiply
    270,634.50x = 405,953.43 × 70,953.09
  4. Step 4: Simplify right side
    270,634.50x = 28,803,650,254.60
  5. Step 5: Solve for x
    x = 28,803,650,254.60/270,634.50
  6. Step 6: Final answer
    x = 106,430.08

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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.