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Finding the Fourth Proportional to 377,706.75, 521,272.96 and 282,047.37

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Solution

The fourth proportional to 377,706.75, 521,272.96 and 282,047.37 is: 389,253.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,706.75 : 521,272.96 = 282,047.37 : x
  2. Step 2: Convert to fraction form
    377,706.75/521,272.96 = 282,047.37/x
  3. Step 3: Cross multiply
    377,706.75x = 521,272.96 × 282,047.37
  4. Step 4: Simplify right side
    377,706.75x = 147,023,664,813.75
  5. Step 5: Solve for x
    x = 147,023,664,813.75/377,706.75
  6. Step 6: Final answer
    x = 389,253.48

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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.