Home / 307,298.04-424,424.40-205,145.64

Finding the Fourth Proportional to 307,298.04, 424,424.40 and 205,145.64

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Solution

The fourth proportional to 307,298.04, 424,424.40 and 205,145.64 is: 283,336.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,298.04 : 424,424.40 = 205,145.64 : x
  2. Step 2: Convert to fraction form
    307,298.04/424,424.40 = 205,145.64/x
  3. Step 3: Cross multiply
    307,298.04x = 424,424.40 × 205,145.64
  4. Step 4: Simplify right side
    307,298.04x = 87,068,815,169.62
  5. Step 5: Solve for x
    x = 87,068,815,169.62/307,298.04
  6. Step 6: Final answer
    x = 283,336.71

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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.