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Finding the Fourth Proportional to 253,029.79, 348,954.95 and 209,941.07

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Solution

The fourth proportional to 253,029.79, 348,954.95 and 209,941.07 is: 289,531.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,029.79 : 348,954.95 = 209,941.07 : x
  2. Step 2: Convert to fraction form
    253,029.79/348,954.95 = 209,941.07/x
  3. Step 3: Cross multiply
    253,029.79x = 348,954.95 × 209,941.07
  4. Step 4: Simplify right side
    253,029.79x = 73,259,975,346.31
  5. Step 5: Solve for x
    x = 73,259,975,346.31/253,029.79
  6. Step 6: Final answer
    x = 289,531.03

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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.