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Finding the Fourth Proportional to 285,555.53, 428,031.86 and 95,835.98

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Solution

The fourth proportional to 285,555.53, 428,031.86 and 95,835.98 is: 143,652.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,555.53 : 428,031.86 = 95,835.98 : x
  2. Step 2: Convert to fraction form
    285,555.53/428,031.86 = 95,835.98/x
  3. Step 3: Cross multiply
    285,555.53x = 428,031.86 × 95,835.98
  4. Step 4: Simplify right side
    285,555.53x = 41,020,850,154.98
  5. Step 5: Solve for x
    x = 41,020,850,154.98/285,555.53
  6. Step 6: Final answer
    x = 143,652.80

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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.