Home / 209,935.13-289,813.90-145,453.25

Finding the Fourth Proportional to 209,935.13, 289,813.90 and 145,453.25

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Solution

The fourth proportional to 209,935.13, 289,813.90 and 145,453.25 is: 200,797.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,935.13 : 289,813.90 = 145,453.25 : x
  2. Step 2: Convert to fraction form
    209,935.13/289,813.90 = 145,453.25/x
  3. Step 3: Cross multiply
    209,935.13x = 289,813.90 × 145,453.25
  4. Step 4: Simplify right side
    209,935.13x = 42,154,374,283.80
  5. Step 5: Solve for x
    x = 42,154,374,283.80/209,935.13
  6. Step 6: Final answer
    x = 200,797.15

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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.