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Finding the Fourth Proportional to 155,282.40, 232,923.60 and 145,440.90

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Solution

The fourth proportional to 155,282.40, 232,923.60 and 145,440.90 is: 218,161.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,282.40 : 232,923.60 = 145,440.90 : x
  2. Step 2: Convert to fraction form
    155,282.40/232,923.60 = 145,440.90/x
  3. Step 3: Cross multiply
    155,282.40x = 232,923.60 × 145,440.90
  4. Step 4: Simplify right side
    155,282.40x = 33,876,618,015.24
  5. Step 5: Solve for x
    x = 33,876,618,015.24/155,282.40
  6. Step 6: Final answer
    x = 218,161.35

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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.