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Finding the Fourth Proportional to 285,650.63, 428,532.00 and 105,737.63

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Solution

The fourth proportional to 285,650.63, 428,532.00 and 105,737.63 is: 158,627.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,650.63 : 428,532.00 = 105,737.63 : x
  2. Step 2: Convert to fraction form
    285,650.63/428,532.00 = 105,737.63/x
  3. Step 3: Cross multiply
    285,650.63x = 428,532.00 × 105,737.63
  4. Step 4: Simplify right side
    285,650.63x = 45,311,958,681.79
  5. Step 5: Solve for x
    x = 45,311,958,681.79/285,650.63
  6. Step 6: Final answer
    x = 158,627.19

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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.