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Finding the Fourth Proportional to 243,352.67, 335,641.52 and 209,418.26

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Solution

The fourth proportional to 243,352.67, 335,641.52 and 209,418.26 is: 288,837.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,352.67 : 335,641.52 = 209,418.26 : x
  2. Step 2: Convert to fraction form
    243,352.67/335,641.52 = 209,418.26/x
  3. Step 3: Cross multiply
    243,352.67x = 335,641.52 × 209,418.26
  4. Step 4: Simplify right side
    243,352.67x = 70,289,461,947.49
  5. Step 5: Solve for x
    x = 70,289,461,947.49/243,352.67
  6. Step 6: Final answer
    x = 288,837.86

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1.5x scale

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.