Home / 421,072.20-581,072.67-230,081.22

Finding the Fourth Proportional to 421,072.20, 581,072.67 and 230,081.22

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Solution

The fourth proportional to 421,072.20, 581,072.67 and 230,081.22 is: 317,508.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,072.20 : 581,072.67 = 230,081.22 : x
  2. Step 2: Convert to fraction form
    421,072.20/581,072.67 = 230,081.22/x
  3. Step 3: Cross multiply
    421,072.20x = 581,072.67 × 230,081.22
  4. Step 4: Simplify right side
    421,072.20x = 133,693,908,822.26
  5. Step 5: Solve for x
    x = 133,693,908,822.26/421,072.20
  6. Step 6: Final answer
    x = 317,508.28

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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.