Home / 442,935.72-664,509.42-143,416.64

Finding the Fourth Proportional to 442,935.72, 664,509.42 and 143,416.64

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Solution

The fourth proportional to 442,935.72, 664,509.42 and 143,416.64 is: 215,159.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,935.72 : 664,509.42 = 143,416.64 : x
  2. Step 2: Convert to fraction form
    442,935.72/664,509.42 = 143,416.64/x
  3. Step 3: Cross multiply
    442,935.72x = 664,509.42 × 143,416.64
  4. Step 4: Simplify right side
    442,935.72x = 95,301,704,942.20
  5. Step 5: Solve for x
    x = 95,301,704,942.20/442,935.72
  6. Step 6: Final answer
    x = 215,159.22

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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.