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Finding the Fourth Proportional to 456,321.80, 629,720.12 and 252,368.36

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Solution

The fourth proportional to 456,321.80, 629,720.12 and 252,368.36 is: 348,266.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,321.80 : 629,720.12 = 252,368.36 : x
  2. Step 2: Convert to fraction form
    456,321.80/629,720.12 = 252,368.36/x
  3. Step 3: Cross multiply
    456,321.80x = 629,720.12 × 252,368.36
  4. Step 4: Simplify right side
    456,321.80x = 158,921,433,787.17
  5. Step 5: Solve for x
    x = 158,921,433,787.17/456,321.80
  6. Step 6: Final answer
    x = 348,266.14

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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.