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Finding the Fourth Proportional to 281,592.78, 388,598.07 and 168,415.50

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Solution

The fourth proportional to 281,592.78, 388,598.07 and 168,415.50 is: 232,413.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,592.78 : 388,598.07 = 168,415.50 : x
  2. Step 2: Convert to fraction form
    281,592.78/388,598.07 = 168,415.50/x
  3. Step 3: Cross multiply
    281,592.78x = 388,598.07 × 168,415.50
  4. Step 4: Simplify right side
    281,592.78x = 65,445,938,258.09
  5. Step 5: Solve for x
    x = 65,445,938,258.09/281,592.78
  6. Step 6: Final answer
    x = 232,413.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.