Home / 285,464.64-393,982.56-172,303.68

Finding the Fourth Proportional to 285,464.64, 393,982.56 and 172,303.68

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Solution

The fourth proportional to 285,464.64, 393,982.56 and 172,303.68 is: 237,804.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,464.64 : 393,982.56 = 172,303.68 : x
  2. Step 2: Convert to fraction form
    285,464.64/393,982.56 = 172,303.68/x
  3. Step 3: Cross multiply
    285,464.64x = 393,982.56 × 172,303.68
  4. Step 4: Simplify right side
    285,464.64x = 67,884,644,943.82
  5. Step 5: Solve for x
    x = 67,884,644,943.82/285,464.64
  6. Step 6: Final answer
    x = 237,804.04

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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.