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Finding the Fourth Proportional to 347,730.68, 521,596 and 189,873

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Solution

The fourth proportional to 347,730.68, 521,596 and 189,873 is: 284,809.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,730.68 : 521,596 = 189,873 : x
  2. Step 2: Convert to fraction form
    347,730.68/521,596 = 189,873/x
  3. Step 3: Cross multiply
    347,730.68x = 521,596 × 189,873
  4. Step 4: Simplify right side
    347,730.68x = 99,036,997,308
  5. Step 5: Solve for x
    x = 99,036,997,308/347,730.68
  6. Step 6: Final answer
    x = 284,809.49

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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.