Home / 421,517.10-581,702.13-230,542.77

Finding the Fourth Proportional to 421,517.10, 581,702.13 and 230,542.77

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Solution

The fourth proportional to 421,517.10, 581,702.13 and 230,542.77 is: 318,153.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,517.10 : 581,702.13 = 230,542.77 : x
  2. Step 2: Convert to fraction form
    421,517.10/581,702.13 = 230,542.77/x
  3. Step 3: Cross multiply
    421,517.10x = 581,702.13 × 230,542.77
  4. Step 4: Simplify right side
    421,517.10x = 134,107,220,365.10
  5. Step 5: Solve for x
    x = 134,107,220,365.10/421,517.10
  6. Step 6: Final answer
    x = 318,153.69

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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.