Home / 421,631.20-581,846.34-230,642.29

Finding the Fourth Proportional to 421,631.20, 581,846.34 and 230,642.29

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Solution

The fourth proportional to 421,631.20, 581,846.34 and 230,642.29 is: 318,283.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,631.20 : 581,846.34 = 230,642.29 : x
  2. Step 2: Convert to fraction form
    421,631.20/581,846.34 = 230,642.29/x
  3. Step 3: Cross multiply
    421,631.20x = 581,846.34 × 230,642.29
  4. Step 4: Simplify right side
    421,631.20x = 134,198,372,285.72
  5. Step 5: Solve for x
    x = 134,198,372,285.72/421,631.20
  6. Step 6: Final answer
    x = 318,283.78

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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.