Home / 340,688.09-510,257.31-264,173.40

Finding the Fourth Proportional to 340,688.09, 510,257.31 and 264,173.40

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Solution

The fourth proportional to 340,688.09, 510,257.31 and 264,173.40 is: 395,659.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,688.09 : 510,257.31 = 264,173.40 : x
  2. Step 2: Convert to fraction form
    340,688.09/510,257.31 = 264,173.40/x
  3. Step 3: Cross multiply
    340,688.09x = 510,257.31 × 264,173.40
  4. Step 4: Simplify right side
    340,688.09x = 134,796,407,466.90
  5. Step 5: Solve for x
    x = 134,796,407,466.90/340,688.09
  6. Step 6: Final answer
    x = 395,659.29

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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.