Home / 319,495.08-440,823.96-210,587.34

Finding the Fourth Proportional to 319,495.08, 440,823.96 and 210,587.34

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Solution

The fourth proportional to 319,495.08, 440,823.96 and 210,587.34 is: 290,558.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,495.08 : 440,823.96 = 210,587.34 : x
  2. Step 2: Convert to fraction form
    319,495.08/440,823.96 = 210,587.34/x
  3. Step 3: Cross multiply
    319,495.08x = 440,823.96 × 210,587.34
  4. Step 4: Simplify right side
    319,495.08x = 92,831,945,144.67
  5. Step 5: Solve for x
    x = 92,831,945,144.67/319,495.08
  6. Step 6: Final answer
    x = 290,558.29

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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.