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Finding the Fourth Proportional to 377,706.50, 521,272.62 and 282,047.12

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Solution

The fourth proportional to 377,706.50, 521,272.62 and 282,047.12 is: 389,253.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,706.50 : 521,272.62 = 282,047.12 : x
  2. Step 2: Convert to fraction form
    377,706.50/521,272.62 = 282,047.12/x
  3. Step 3: Cross multiply
    377,706.50x = 521,272.62 × 282,047.12
  4. Step 4: Simplify right side
    377,706.50x = 147,023,437,189.26
  5. Step 5: Solve for x
    x = 147,023,437,189.26/377,706.50
  6. Step 6: Final answer
    x = 389,253.13

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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.