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Finding the Fourth Proportional to 375,816.16, 518,650.32 and 248,268.16

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Solution

The fourth proportional to 375,816.16, 518,650.32 and 248,268.16 is: 342,625.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,816.16 : 518,650.32 = 248,268.16 : x
  2. Step 2: Convert to fraction form
    375,816.16/518,650.32 = 248,268.16/x
  3. Step 3: Cross multiply
    375,816.16x = 518,650.32 × 248,268.16
  4. Step 4: Simplify right side
    375,816.16x = 128,764,360,629.81
  5. Step 5: Solve for x
    x = 128,764,360,629.81/375,816.16
  6. Step 6: Final answer
    x = 342,625.93

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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.