Home / 421,274.88-581,359.40-230,289.04

Finding the Fourth Proportional to 421,274.88, 581,359.40 and 230,289.04

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Solution

The fourth proportional to 421,274.88, 581,359.40 and 230,289.04 is: 317,798.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,274.88 : 581,359.40 = 230,289.04 : x
  2. Step 2: Convert to fraction form
    421,274.88/581,359.40 = 230,289.04/x
  3. Step 3: Cross multiply
    421,274.88x = 581,359.40 × 230,289.04
  4. Step 4: Simplify right side
    421,274.88x = 133,880,698,120.98
  5. Step 5: Solve for x
    x = 133,880,698,120.98/421,274.88
  6. Step 6: Final answer
    x = 317,798.91

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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.