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Finding the Fourth Proportional to 155,288.80, 232,933.20 and 136,043.20

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Solution

The fourth proportional to 155,288.80, 232,933.20 and 136,043.20 is: 204,064.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,288.80 : 232,933.20 = 136,043.20 : x
  2. Step 2: Convert to fraction form
    155,288.80/232,933.20 = 136,043.20/x
  3. Step 3: Cross multiply
    155,288.80x = 232,933.20 × 136,043.20
  4. Step 4: Simplify right side
    155,288.80x = 31,688,977,914.24
  5. Step 5: Solve for x
    x = 31,688,977,914.24/155,288.80
  6. Step 6: Final answer
    x = 204,064.80

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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.