Home / 421,240.92-581,312.43-230,255.07

Finding the Fourth Proportional to 421,240.92, 581,312.43 and 230,255.07

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Solution

The fourth proportional to 421,240.92, 581,312.43 and 230,255.07 is: 317,751.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,240.92 : 581,312.43 = 230,255.07 : x
  2. Step 2: Convert to fraction form
    421,240.92/581,312.43 = 230,255.07/x
  3. Step 3: Cross multiply
    421,240.92x = 581,312.43 × 230,255.07
  4. Step 4: Simplify right side
    421,240.92x = 133,850,134,261.52
  5. Step 5: Solve for x
    x = 133,850,134,261.52/421,240.92
  6. Step 6: Final answer
    x = 317,751.97

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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.