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Finding the Fourth Proportional to 285,572.40, 428,395.32 and 95,950.86

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Solution

The fourth proportional to 285,572.40, 428,395.32 and 95,950.86 is: 143,938.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,572.40 : 428,395.32 = 95,950.86 : x
  2. Step 2: Convert to fraction form
    285,572.40/428,395.32 = 95,950.86/x
  3. Step 3: Cross multiply
    285,572.40x = 428,395.32 × 95,950.86
  4. Step 4: Simplify right side
    285,572.40x = 41,104,899,373.98
  5. Step 5: Solve for x
    x = 41,104,899,373.98/285,572.40
  6. Step 6: Final answer
    x = 143,938.63

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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.