Home / 289,619.70-434,429.55-147,902.10

Finding the Fourth Proportional to 289,619.70, 434,429.55 and 147,902.10

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Solution

The fourth proportional to 289,619.70, 434,429.55 and 147,902.10 is: 221,853.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,619.70 : 434,429.55 = 147,902.10 : x
  2. Step 2: Convert to fraction form
    289,619.70/434,429.55 = 147,902.10/x
  3. Step 3: Cross multiply
    289,619.70x = 434,429.55 × 147,902.10
  4. Step 4: Simplify right side
    289,619.70x = 64,253,042,747.06
  5. Step 5: Solve for x
    x = 64,253,042,747.06/289,619.70
  6. Step 6: Final answer
    x = 221,853.15

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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.