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Finding the Fourth Proportional to 421,276.88, 581,362.16 and 230,291.04

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Solution

The fourth proportional to 421,276.88, 581,362.16 and 230,291.04 is: 317,801.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,276.88 : 581,362.16 = 230,291.04 : x
  2. Step 2: Convert to fraction form
    421,276.88/581,362.16 = 230,291.04/x
  3. Step 3: Cross multiply
    421,276.88x = 581,362.16 × 230,291.04
  4. Step 4: Simplify right side
    421,276.88x = 133,882,496,443.05
  5. Step 5: Solve for x
    x = 133,882,496,443.05/421,276.88
  6. Step 6: Final answer
    x = 317,801.67

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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.