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Finding the Fourth Proportional to 290,751.62, 435,842.69 and 162,730.43

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Solution

The fourth proportional to 290,751.62, 435,842.69 and 162,730.43 is: 243,936.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,751.62 : 435,842.69 = 162,730.43 : x
  2. Step 2: Convert to fraction form
    290,751.62/435,842.69 = 162,730.43/x
  3. Step 3: Cross multiply
    290,751.62x = 435,842.69 × 162,730.43
  4. Step 4: Simplify right side
    290,751.62x = 70,924,865,363.19
  5. Step 5: Solve for x
    x = 70,924,865,363.19/290,751.62
  6. Step 6: Final answer
    x = 243,936.27

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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.