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Finding the Fourth Proportional to 319,571.40, 479,356.49 and 186,358.24

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Solution

The fourth proportional to 319,571.40, 479,356.49 and 186,358.24 is: 279,537.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,571.40 : 479,356.49 = 186,358.24 : x
  2. Step 2: Convert to fraction form
    319,571.40/479,356.49 = 186,358.24/x
  3. Step 3: Cross multiply
    319,571.40x = 479,356.49 × 186,358.24
  4. Step 4: Simplify right side
    319,571.40x = 89,332,031,808.98
  5. Step 5: Solve for x
    x = 89,332,031,808.98/319,571.40
  6. Step 6: Final answer
    x = 279,537.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.