Home / 421,220.37-581,284.43-230,233.77

Finding the Fourth Proportional to 421,220.37, 581,284.43 and 230,233.77

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Solution

The fourth proportional to 421,220.37, 581,284.43 and 230,233.77 is: 317,722.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,220.37 : 581,284.43 = 230,233.77 : x
  2. Step 2: Convert to fraction form
    421,220.37/581,284.43 = 230,233.77/x
  3. Step 3: Cross multiply
    421,220.37x = 581,284.43 × 230,233.77
  4. Step 4: Simplify right side
    421,220.37x = 133,831,305,761.20
  5. Step 5: Solve for x
    x = 133,831,305,761.20/421,220.37
  6. Step 6: Final answer
    x = 317,722.78

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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.