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Finding the Fourth Proportional to 377,136.54, 520,450.38 and 207,381.60

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Solution

The fourth proportional to 377,136.54, 520,450.38 and 207,381.60 is: 286,187.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,136.54 : 520,450.38 = 207,381.60 : x
  2. Step 2: Convert to fraction form
    377,136.54/520,450.38 = 207,381.60/x
  3. Step 3: Cross multiply
    377,136.54x = 520,450.38 × 207,381.60
  4. Step 4: Simplify right side
    377,136.54x = 107,931,832,525.01
  5. Step 5: Solve for x
    x = 107,931,832,525.01/377,136.54
  6. Step 6: Final answer
    x = 286,187.68

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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.