Home / 319,056.72-440,298.40-173,861.52

Finding the Fourth Proportional to 319,056.72, 440,298.40 and 173,861.52

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Solution

The fourth proportional to 319,056.72, 440,298.40 and 173,861.52 is: 239,928.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,056.72 : 440,298.40 = 173,861.52 : x
  2. Step 2: Convert to fraction form
    319,056.72/440,298.40 = 173,861.52/x
  3. Step 3: Cross multiply
    319,056.72x = 440,298.40 × 173,861.52
  4. Step 4: Simplify right side
    319,056.72x = 76,550,949,077.57
  5. Step 5: Solve for x
    x = 76,550,949,077.57/319,056.72
  6. Step 6: Final answer
    x = 239,928.97

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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.