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Finding the Fourth Proportional to 240,650.34, 360,868.88 and 128,309.63

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Solution

The fourth proportional to 240,650.34, 360,868.88 and 128,309.63 is: 192,407.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,650.34 : 360,868.88 = 128,309.63 : x
  2. Step 2: Convert to fraction form
    240,650.34/360,868.88 = 128,309.63/x
  3. Step 3: Cross multiply
    240,650.34x = 360,868.88 × 128,309.63
  4. Step 4: Simplify right side
    240,650.34x = 46,302,950,025.42
  5. Step 5: Solve for x
    x = 46,302,950,025.42/240,650.34
  6. Step 6: Final answer
    x = 192,407.58

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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.