Home / 421,020.32-581,001.26-230,029.61

Finding the Fourth Proportional to 421,020.32, 581,001.26 and 230,029.61

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Solution

The fourth proportional to 421,020.32, 581,001.26 and 230,029.61 is: 317,437.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,020.32 : 581,001.26 = 230,029.61 : x
  2. Step 2: Convert to fraction form
    421,020.32/581,001.26 = 230,029.61/x
  3. Step 3: Cross multiply
    421,020.32x = 581,001.26 × 230,029.61
  4. Step 4: Simplify right side
    421,020.32x = 133,647,489,192.15
  5. Step 5: Solve for x
    x = 133,647,489,192.15/421,020.32
  6. Step 6: Final answer
    x = 317,437.15

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1.5x scale

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.