Home / 421,101.12-581,109.96-230,115.66

Finding the Fourth Proportional to 421,101.12, 581,109.96 and 230,115.66

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Solution

The fourth proportional to 421,101.12, 581,109.96 and 230,115.66 is: 317,554.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,101.12 : 581,109.96 = 230,115.66 : x
  2. Step 2: Convert to fraction form
    421,101.12/581,109.96 = 230,115.66/x
  3. Step 3: Cross multiply
    421,101.12x = 581,109.96 × 230,115.66
  4. Step 4: Simplify right side
    421,101.12x = 133,722,501,977.97
  5. Step 5: Solve for x
    x = 133,722,501,977.97/421,101.12
  6. Step 6: Final answer
    x = 317,554.37

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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.