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Finding the Fourth Proportional to 421,664.70, 581,892.48 and 230,675.88

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Solution

The fourth proportional to 421,664.70, 581,892.48 and 230,675.88 is: 318,330.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,664.70 : 581,892.48 = 230,675.88 : x
  2. Step 2: Convert to fraction form
    421,664.70/581,892.48 = 230,675.88/x
  3. Step 3: Cross multiply
    421,664.70x = 581,892.48 × 230,675.88
  4. Step 4: Simplify right side
    421,664.70x = 134,228,559,889.38
  5. Step 5: Solve for x
    x = 134,228,559,889.38/421,664.70
  6. Step 6: Final answer
    x = 318,330.09

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1.5x scale

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.