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Finding the Fourth Proportional to 421,349.98, 581,463.04 and 230,363.42

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Solution

The fourth proportional to 421,349.98, 581,463.04 and 230,363.42 is: 317,901.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,349.98 : 581,463.04 = 230,363.42 : x
  2. Step 2: Convert to fraction form
    421,349.98/581,463.04 = 230,363.42/x
  3. Step 3: Cross multiply
    421,349.98x = 581,463.04 × 230,363.42
  4. Step 4: Simplify right side
    421,349.98x = 133,947,814,498.00
  5. Step 5: Solve for x
    x = 133,947,814,498.00/421,349.98
  6. Step 6: Final answer
    x = 317,901.56

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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.