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Finding the Fourth Proportional to 179,999.40, 269,675.10 and 142,804.20

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Solution

The fourth proportional to 179,999.40, 269,675.10 and 142,804.20 is: 213,949.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,999.40 : 269,675.10 = 142,804.20 : x
  2. Step 2: Convert to fraction form
    179,999.40/269,675.10 = 142,804.20/x
  3. Step 3: Cross multiply
    179,999.40x = 269,675.10 × 142,804.20
  4. Step 4: Simplify right side
    179,999.40x = 38,510,736,915.42
  5. Step 5: Solve for x
    x = 38,510,736,915.42/179,999.40
  6. Step 6: Final answer
    x = 213,949.25

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1.5x scale

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.