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Finding the Fourth Proportional to 155,252.40, 232,878.60 and 145,410.90

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Solution

The fourth proportional to 155,252.40, 232,878.60 and 145,410.90 is: 218,116.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,252.40 : 232,878.60 = 145,410.90 : x
  2. Step 2: Convert to fraction form
    155,252.40/232,878.60 = 145,410.90/x
  3. Step 3: Cross multiply
    155,252.40x = 232,878.60 × 145,410.90
  4. Step 4: Simplify right side
    155,252.40x = 33,863,086,816.74
  5. Step 5: Solve for x
    x = 33,863,086,816.74/155,252.40
  6. Step 6: Final answer
    x = 218,116.35

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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.