Home / 279,439.68-385,566.96-166,240.32

Finding the Fourth Proportional to 279,439.68, 385,566.96 and 166,240.32

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Solution

The fourth proportional to 279,439.68, 385,566.96 and 166,240.32 is: 229,376.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,439.68 : 385,566.96 = 166,240.32 : x
  2. Step 2: Convert to fraction form
    279,439.68/385,566.96 = 166,240.32/x
  3. Step 3: Cross multiply
    279,439.68x = 385,566.96 × 166,240.32
  4. Step 4: Simplify right side
    279,439.68x = 64,096,774,811.83
  5. Step 5: Solve for x
    x = 64,096,774,811.83/279,439.68
  6. Step 6: Final answer
    x = 229,376.07

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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.