Home / 289,815.80-434,853.30-102,961.40

Finding the Fourth Proportional to 289,815.80, 434,853.30 and 102,961.40

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Solution

The fourth proportional to 289,815.80, 434,853.30 and 102,961.40 is: 154,488.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,815.80 : 434,853.30 = 102,961.40 : x
  2. Step 2: Convert to fraction form
    289,815.80/434,853.30 = 102,961.40/x
  3. Step 3: Cross multiply
    289,815.80x = 434,853.30 × 102,961.40
  4. Step 4: Simplify right side
    289,815.80x = 44,773,104,562.62
  5. Step 5: Solve for x
    x = 44,773,104,562.62/289,815.80
  6. Step 6: Final answer
    x = 154,488.14

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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.