Home / 421,144.21-581,238.39-268,133.59

Finding the Fourth Proportional to 421,144.21, 581,238.39 and 268,133.59

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Solution

The fourth proportional to 421,144.21, 581,238.39 and 268,133.59 is: 370,062.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,144.21 : 581,238.39 = 268,133.59 : x
  2. Step 2: Convert to fraction form
    421,144.21/581,238.39 = 268,133.59/x
  3. Step 3: Cross multiply
    421,144.21x = 581,238.39 × 268,133.59
  4. Step 4: Simplify right side
    421,144.21x = 155,849,536,156.52
  5. Step 5: Solve for x
    x = 155,849,536,156.52/421,144.21
  6. Step 6: Final answer
    x = 370,062.16

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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.