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Finding the Fourth Proportional to 455,463.30, 682,737.74 and 155,738.91

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Solution

The fourth proportional to 455,463.30, 682,737.74 and 155,738.91 is: 233,452.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,463.30 : 682,737.74 = 155,738.91 : x
  2. Step 2: Convert to fraction form
    455,463.30/682,737.74 = 155,738.91/x
  3. Step 3: Cross multiply
    455,463.30x = 682,737.74 × 155,738.91
  4. Step 4: Simplify right side
    455,463.30x = 106,328,830,664.77
  5. Step 5: Solve for x
    x = 106,328,830,664.77/455,463.30
  6. Step 6: Final answer
    x = 233,452.03

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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.