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Finding the Fourth Proportional to 248,572.80, 372,907.80 and 98,787.60

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Solution

The fourth proportional to 248,572.80, 372,907.80 and 98,787.60 is: 148,200.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,572.80 : 372,907.80 = 98,787.60 : x
  2. Step 2: Convert to fraction form
    248,572.80/372,907.80 = 98,787.60/x
  3. Step 3: Cross multiply
    248,572.80x = 372,907.80 × 98,787.60
  4. Step 4: Simplify right side
    248,572.80x = 36,838,666,583.28
  5. Step 5: Solve for x
    x = 36,838,666,583.28/248,572.80
  6. Step 6: Final answer
    x = 148,200.71

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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.