Home / 421,042.83-581,043.18-230,056.21

Finding the Fourth Proportional to 421,042.83, 581,043.18 and 230,056.21

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Solution

The fourth proportional to 421,042.83, 581,043.18 and 230,056.21 is: 317,479.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,042.83 : 581,043.18 = 230,056.21 : x
  2. Step 2: Convert to fraction form
    421,042.83/581,043.18 = 230,056.21/x
  3. Step 3: Cross multiply
    421,042.83x = 581,043.18 × 230,056.21
  4. Step 4: Simplify right side
    421,042.83x = 133,672,591,837.15
  5. Step 5: Solve for x
    x = 133,672,591,837.15/421,042.83
  6. Step 6: Final answer
    x = 317,479.80

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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.