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Finding the Fourth Proportional to 439,975.76, 607,175.64 and 248,989.10

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Solution

The fourth proportional to 439,975.76, 607,175.64 and 248,989.10 is: 343,610.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,975.76 : 607,175.64 = 248,989.10 : x
  2. Step 2: Convert to fraction form
    439,975.76/607,175.64 = 248,989.10/x
  3. Step 3: Cross multiply
    439,975.76x = 607,175.64 × 248,989.10
  4. Step 4: Simplify right side
    439,975.76x = 151,180,116,145.52
  5. Step 5: Solve for x
    x = 151,180,116,145.52/439,975.76
  6. Step 6: Final answer
    x = 343,610.10

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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.