Home / 421,263.55-581,201.83-239,847.18

Finding the Fourth Proportional to 421,263.55, 581,201.83 and 239,847.18

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Solution

The fourth proportional to 421,263.55, 581,201.83 and 239,847.18 is: 330,908.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,263.55 : 581,201.83 = 239,847.18 : x
  2. Step 2: Convert to fraction form
    421,263.55/581,201.83 = 239,847.18/x
  3. Step 3: Cross multiply
    421,263.55x = 581,201.83 × 239,847.18
  4. Step 4: Simplify right side
    421,263.55x = 139,399,619,936.34
  5. Step 5: Solve for x
    x = 139,399,619,936.34/421,263.55
  6. Step 6: Final answer
    x = 330,908.34

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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.