Home / 421,139.44-581,173.94-230,152.91

Finding the Fourth Proportional to 421,139.44, 581,173.94 and 230,152.91

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Solution

The fourth proportional to 421,139.44, 581,173.94 and 230,152.91 is: 317,611.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,139.44 : 581,173.94 = 230,152.91 : x
  2. Step 2: Convert to fraction form
    421,139.44/581,173.94 = 230,152.91/x
  3. Step 3: Cross multiply
    421,139.44x = 581,173.94 × 230,152.91
  4. Step 4: Simplify right side
    421,139.44x = 133,758,872,356.40
  5. Step 5: Solve for x
    x = 133,758,872,356.40/421,139.44
  6. Step 6: Final answer
    x = 317,611.84

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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.