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Finding the Fourth Proportional to 259,433.45, 389,314.20 and 152,817.20

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Solution

The fourth proportional to 259,433.45, 389,314.20 and 152,817.20 is: 229,322.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,433.45 : 389,314.20 = 152,817.20 : x
  2. Step 2: Convert to fraction form
    259,433.45/389,314.20 = 152,817.20/x
  3. Step 3: Cross multiply
    259,433.45x = 389,314.20 × 152,817.20
  4. Step 4: Simplify right side
    259,433.45x = 59,493,905,964.24
  5. Step 5: Solve for x
    x = 59,493,905,964.24/259,433.45
  6. Step 6: Final answer
    x = 229,322.42

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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.