Home / 377,531.89-520,987.67-205,445.40

Finding the Fourth Proportional to 377,531.89, 520,987.67 and 205,445.40

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Solution

The fourth proportional to 377,531.89, 520,987.67 and 205,445.40 is: 283,511.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,531.89 : 520,987.67 = 205,445.40 : x
  2. Step 2: Convert to fraction form
    377,531.89/520,987.67 = 205,445.40/x
  3. Step 3: Cross multiply
    377,531.89x = 520,987.67 × 205,445.40
  4. Step 4: Simplify right side
    377,531.89x = 107,034,520,978.26
  5. Step 5: Solve for x
    x = 107,034,520,978.26/377,531.89
  6. Step 6: Final answer
    x = 283,511.21

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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.