Home / 377,766.89-521,355.08-282,107.51

Finding the Fourth Proportional to 377,766.89, 521,355.08 and 282,107.51

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Solution

The fourth proportional to 377,766.89, 521,355.08 and 282,107.51 is: 389,335.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,766.89 : 521,355.08 = 282,107.51 : x
  2. Step 2: Convert to fraction form
    377,766.89/521,355.08 = 282,107.51/x
  3. Step 3: Cross multiply
    377,766.89x = 521,355.08 × 282,107.51
  4. Step 4: Simplify right side
    377,766.89x = 147,078,181,543.14
  5. Step 5: Solve for x
    x = 147,078,181,543.14/377,766.89
  6. Step 6: Final answer
    x = 389,335.82

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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.