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Finding the Fourth Proportional to 377,700.87, 521,264.85 and 282,041.49

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Solution

The fourth proportional to 377,700.87, 521,264.85 and 282,041.49 is: 389,245.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,700.87 : 521,264.85 = 282,041.49 : x
  2. Step 2: Convert to fraction form
    377,700.87/521,264.85 = 282,041.49/x
  3. Step 3: Cross multiply
    377,700.87x = 521,264.85 × 282,041.49
  4. Step 4: Simplify right side
    377,700.87x = 147,018,314,978.63
  5. Step 5: Solve for x
    x = 147,018,314,978.63/377,700.87
  6. Step 6: Final answer
    x = 389,245.37

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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.