Home / 289,546.20-434,307.84-121,023

Finding the Fourth Proportional to 289,546.20, 434,307.84 and 121,023

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Solution

The fourth proportional to 289,546.20, 434,307.84 and 121,023 is: 181,529.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,546.20 : 434,307.84 = 121,023 : x
  2. Step 2: Convert to fraction form
    289,546.20/434,307.84 = 121,023/x
  3. Step 3: Cross multiply
    289,546.20x = 434,307.84 × 121,023
  4. Step 4: Simplify right side
    289,546.20x = 52,561,237,720.32
  5. Step 5: Solve for x
    x = 52,561,237,720.32/289,546.20
  6. Step 6: Final answer
    x = 181,529.71

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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.