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Finding the Fourth Proportional to 404,321.19, 606,417.48 and 134,426.90

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Solution

The fourth proportional to 404,321.19, 606,417.48 and 134,426.90 is: 201,618.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,321.19 : 606,417.48 = 134,426.90 : x
  2. Step 2: Convert to fraction form
    404,321.19/606,417.48 = 134,426.90/x
  3. Step 3: Cross multiply
    404,321.19x = 606,417.48 × 134,426.90
  4. Step 4: Simplify right side
    404,321.19x = 81,518,818,910.12
  5. Step 5: Solve for x
    x = 81,518,818,910.12/404,321.19
  6. Step 6: Final answer
    x = 201,618.96

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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.