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Finding the Fourth Proportional to 155,288.80, 233,108.40 and 102,800.80

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Solution

The fourth proportional to 155,288.80, 233,108.40 and 102,800.80 is: 154,317.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,288.80 : 233,108.40 = 102,800.80 : x
  2. Step 2: Convert to fraction form
    155,288.80/233,108.40 = 102,800.80/x
  3. Step 3: Cross multiply
    155,288.80x = 233,108.40 × 102,800.80
  4. Step 4: Simplify right side
    155,288.80x = 23,963,730,006.72
  5. Step 5: Solve for x
    x = 23,963,730,006.72/155,288.80
  6. Step 6: Final answer
    x = 154,317.18

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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.