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Finding the Fourth Proportional to 323,840.04, 485,643.46 and 136,866.12

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Solution

The fourth proportional to 323,840.04, 485,643.46 and 136,866.12 is: 205,249.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,840.04 : 485,643.46 = 136,866.12 : x
  2. Step 2: Convert to fraction form
    323,840.04/485,643.46 = 136,866.12/x
  3. Step 3: Cross multiply
    323,840.04x = 485,643.46 × 136,866.12
  4. Step 4: Simplify right side
    323,840.04x = 66,468,136,073.58
  5. Step 5: Solve for x
    x = 66,468,136,073.58/323,840.04
  6. Step 6: Final answer
    x = 205,249.90

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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.