Home / 404,421.11-606,631.87-138,184.24

Finding the Fourth Proportional to 404,421.11, 606,631.87 and 138,184.24

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Solution

The fourth proportional to 404,421.11, 606,631.87 and 138,184.24 is: 207,276.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,421.11 : 606,631.87 = 138,184.24 : x
  2. Step 2: Convert to fraction form
    404,421.11/606,631.87 = 138,184.24/x
  3. Step 3: Cross multiply
    404,421.11x = 606,631.87 × 138,184.24
  4. Step 4: Simplify right side
    404,421.11x = 83,826,963,709.31
  5. Step 5: Solve for x
    x = 83,826,963,709.31/404,421.11
  6. Step 6: Final answer
    x = 207,276.43

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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.