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Finding the Fourth Proportional to 296,438.61, 444,658.52 and 138,777.78

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Solution

The fourth proportional to 296,438.61, 444,658.52 and 138,777.78 is: 208,166.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,438.61 : 444,658.52 = 138,777.78 : x
  2. Step 2: Convert to fraction form
    296,438.61/444,658.52 = 138,777.78/x
  3. Step 3: Cross multiply
    296,438.61x = 444,658.52 × 138,777.78
  4. Step 4: Simplify right side
    296,438.61x = 61,708,722,610.63
  5. Step 5: Solve for x
    x = 61,708,722,610.63/296,438.61
  6. Step 6: Final answer
    x = 208,166.95

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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.