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Finding the Fourth Proportional to 377,762.25, 521,227.51 and 316,755.21

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Solution

The fourth proportional to 377,762.25, 521,227.51 and 316,755.21 is: 437,051.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,762.25 : 521,227.51 = 316,755.21 : x
  2. Step 2: Convert to fraction form
    377,762.25/521,227.51 = 316,755.21/x
  3. Step 3: Cross multiply
    377,762.25x = 521,227.51 × 316,755.21
  4. Step 4: Simplify right side
    377,762.25x = 165,101,529,387.83
  5. Step 5: Solve for x
    x = 165,101,529,387.83/377,762.25
  6. Step 6: Final answer
    x = 437,051.42

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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.