Home / 389,606.04-584,431.29-109,145.16

Finding the Fourth Proportional to 389,606.04, 584,431.29 and 109,145.16

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Solution

The fourth proportional to 389,606.04, 584,431.29 and 109,145.16 is: 163,723.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,606.04 : 584,431.29 = 109,145.16 : x
  2. Step 2: Convert to fraction form
    389,606.04/584,431.29 = 109,145.16/x
  3. Step 3: Cross multiply
    389,606.04x = 584,431.29 × 109,145.16
  4. Step 4: Simplify right side
    389,606.04x = 63,787,846,656.06
  5. Step 5: Solve for x
    x = 63,787,846,656.06/389,606.04
  6. Step 6: Final answer
    x = 163,723.97

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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.