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Finding the Fourth Proportional to 344,889.54, 516,448.58 and 211,365

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Solution

The fourth proportional to 344,889.54, 516,448.58 and 211,365 is: 316,504.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,889.54 : 516,448.58 = 211,365 : x
  2. Step 2: Convert to fraction form
    344,889.54/516,448.58 = 211,365/x
  3. Step 3: Cross multiply
    344,889.54x = 516,448.58 × 211,365
  4. Step 4: Simplify right side
    344,889.54x = 109,159,153,054.88
  5. Step 5: Solve for x
    x = 109,159,153,054.88/344,889.54
  6. Step 6: Final answer
    x = 316,504.68

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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.