Home / 421,528.10-581,713.37-230,537.39

Finding the Fourth Proportional to 421,528.10, 581,713.37 and 230,537.39

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Solution

The fourth proportional to 421,528.10, 581,713.37 and 230,537.39 is: 318,144.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,528.10 : 581,713.37 = 230,537.39 : x
  2. Step 2: Convert to fraction form
    421,528.10/581,713.37 = 230,537.39/x
  3. Step 3: Cross multiply
    421,528.10x = 581,713.37 × 230,537.39
  4. Step 4: Simplify right side
    421,528.10x = 134,106,682,771.69
  5. Step 5: Solve for x
    x = 134,106,682,771.69/421,528.10
  6. Step 6: Final answer
    x = 318,144.11

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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.