Home / 421,701.21-581,961.65-230,714.69

Finding the Fourth Proportional to 421,701.21, 581,961.65 and 230,714.69

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Solution

The fourth proportional to 421,701.21, 581,961.65 and 230,714.69 is: 318,393.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,701.21 : 581,961.65 = 230,714.69 : x
  2. Step 2: Convert to fraction form
    421,701.21/581,961.65 = 230,714.69/x
  3. Step 3: Cross multiply
    421,701.21x = 581,961.65 × 230,714.69
  4. Step 4: Simplify right side
    421,701.21x = 134,267,097,608.26
  5. Step 5: Solve for x
    x = 134,267,097,608.26/421,701.21
  6. Step 6: Final answer
    x = 318,393.91

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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.