Home / 209,929.22-289,805.75-145,447.35

Finding the Fourth Proportional to 209,929.22, 289,805.75 and 145,447.35

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Solution

The fourth proportional to 209,929.22, 289,805.75 and 145,447.35 is: 200,789.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,929.22 : 289,805.75 = 145,447.35 : x
  2. Step 2: Convert to fraction form
    209,929.22/289,805.75 = 145,447.35/x
  3. Step 3: Cross multiply
    209,929.22x = 289,805.75 × 145,447.35
  4. Step 4: Simplify right side
    209,929.22x = 42,151,477,083.68
  5. Step 5: Solve for x
    x = 42,151,477,083.68/209,929.22
  6. Step 6: Final answer
    x = 200,789.00

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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.