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Finding the Fourth Proportional to 438,987.52, 658,671.04 and 154,880.84

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Solution

The fourth proportional to 438,987.52, 658,671.04 and 154,880.84 is: 232,388.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,987.52 : 658,671.04 = 154,880.84 : x
  2. Step 2: Convert to fraction form
    438,987.52/658,671.04 = 154,880.84/x
  3. Step 3: Cross multiply
    438,987.52x = 658,671.04 × 154,880.84
  4. Step 4: Simplify right side
    438,987.52x = 102,015,523,958.87
  5. Step 5: Solve for x
    x = 102,015,523,958.87/438,987.52
  6. Step 6: Final answer
    x = 232,388.21

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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.