Home / 421,075.20-581,076.81-230,084.49

Finding the Fourth Proportional to 421,075.20, 581,076.81 and 230,084.49

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Solution

The fourth proportional to 421,075.20, 581,076.81 and 230,084.49 is: 317,512.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,075.20 : 581,076.81 = 230,084.49 : x
  2. Step 2: Convert to fraction form
    421,075.20/581,076.81 = 230,084.49/x
  3. Step 3: Cross multiply
    421,075.20x = 581,076.81 × 230,084.49
  4. Step 4: Simplify right side
    421,075.20x = 133,696,761,479.68
  5. Step 5: Solve for x
    x = 133,696,761,479.68/421,075.20
  6. Step 6: Final answer
    x = 317,512.79

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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.