Home / 319,579.53-479,368.63-186,366.42

Finding the Fourth Proportional to 319,579.53, 479,368.63 and 186,366.42

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Solution

The fourth proportional to 319,579.53, 479,368.63 and 186,366.42 is: 279,549.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,579.53 : 479,368.63 = 186,366.42 : x
  2. Step 2: Convert to fraction form
    319,579.53/479,368.63 = 186,366.42/x
  3. Step 3: Cross multiply
    319,579.53x = 479,368.63 × 186,366.42
  4. Step 4: Simplify right side
    319,579.53x = 89,338,215,666.36
  5. Step 5: Solve for x
    x = 89,338,215,666.36/319,579.53
  6. Step 6: Final answer
    x = 279,549.25

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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.