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Finding the Fourth Proportional to 289,295.90, 432,184.46 and 187,262.73

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Solution

The fourth proportional to 289,295.90, 432,184.46 and 187,262.73 is: 279,755.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,295.90 : 432,184.46 = 187,262.73 : x
  2. Step 2: Convert to fraction form
    289,295.90/432,184.46 = 187,262.73/x
  3. Step 3: Cross multiply
    289,295.90x = 432,184.46 × 187,262.73
  4. Step 4: Simplify right side
    289,295.90x = 80,932,039,682.25
  5. Step 5: Solve for x
    x = 80,932,039,682.25/289,295.90
  6. Step 6: Final answer
    x = 279,755.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.