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Finding the Fourth Proportional to 235,488.90, 324,860.42 and 139,927.94

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Solution

The fourth proportional to 235,488.90, 324,860.42 and 139,927.94 is: 193,032.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,488.90 : 324,860.42 = 139,927.94 : x
  2. Step 2: Convert to fraction form
    235,488.90/324,860.42 = 139,927.94/x
  3. Step 3: Cross multiply
    235,488.90x = 324,860.42 × 139,927.94
  4. Step 4: Simplify right side
    235,488.90x = 45,457,048,083.65
  5. Step 5: Solve for x
    x = 45,457,048,083.65/235,488.90
  6. Step 6: Final answer
    x = 193,032.66

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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.