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Finding the Fourth Proportional to 240,658.67, 332,143.71 and 138,664.59

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Solution

The fourth proportional to 240,658.67, 332,143.71 and 138,664.59 is: 191,377.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,658.67 : 332,143.71 = 138,664.59 : x
  2. Step 2: Convert to fraction form
    240,658.67/332,143.71 = 138,664.59/x
  3. Step 3: Cross multiply
    240,658.67x = 332,143.71 × 138,664.59
  4. Step 4: Simplify right side
    240,658.67x = 46,056,571,368.23
  5. Step 5: Solve for x
    x = 46,056,571,368.23/240,658.67
  6. Step 6: Final answer
    x = 191,377.16

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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.