Home / 421,261.38-581,198.76-239,844.95

Finding the Fourth Proportional to 421,261.38, 581,198.76 and 239,844.95

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Solution

The fourth proportional to 421,261.38, 581,198.76 and 239,844.95 is: 330,905.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,261.38 : 581,198.76 = 239,844.95 : x
  2. Step 2: Convert to fraction form
    421,261.38/581,198.76 = 239,844.95/x
  3. Step 3: Cross multiply
    421,261.38x = 581,198.76 × 239,844.95
  4. Step 4: Simplify right side
    421,261.38x = 139,397,587,532.26
  5. Step 5: Solve for x
    x = 139,397,587,532.26/421,261.38
  6. Step 6: Final answer
    x = 330,905.22

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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.