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Finding the Fourth Proportional to 285,750.48, 428,697 and 201,674.88

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Solution

The fourth proportional to 285,750.48, 428,697 and 201,674.88 is: 302,562.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,750.48 : 428,697 = 201,674.88 : x
  2. Step 2: Convert to fraction form
    285,750.48/428,697 = 201,674.88/x
  3. Step 3: Cross multiply
    285,750.48x = 428,697 × 201,674.88
  4. Step 4: Simplify right side
    285,750.48x = 86,457,416,031.36
  5. Step 5: Solve for x
    x = 86,457,416,031.36/285,750.48
  6. Step 6: Final answer
    x = 302,562.63

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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.