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Finding the Fourth Proportional to 230,239.73, 317,646.55 and 139,530.26

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Solution

The fourth proportional to 230,239.73, 317,646.55 and 139,530.26 is: 192,500.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,239.73 : 317,646.55 = 139,530.26 : x
  2. Step 2: Convert to fraction form
    230,239.73/317,646.55 = 139,530.26/x
  3. Step 3: Cross multiply
    230,239.73x = 317,646.55 × 139,530.26
  4. Step 4: Simplify right side
    230,239.73x = 44,321,305,709.60
  5. Step 5: Solve for x
    x = 44,321,305,709.60/230,239.73
  6. Step 6: Final answer
    x = 192,500.68

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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.