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Finding the Fourth Proportional to 603,561.81, 905,339.19 and 154,282.08

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Solution

The fourth proportional to 603,561.81, 905,339.19 and 154,282.08 is: 231,422.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,561.81 : 905,339.19 = 154,282.08 : x
  2. Step 2: Convert to fraction form
    603,561.81/905,339.19 = 154,282.08/x
  3. Step 3: Cross multiply
    603,561.81x = 905,339.19 × 154,282.08
  4. Step 4: Simplify right side
    603,561.81x = 139,677,613,338.72
  5. Step 5: Solve for x
    x = 139,677,613,338.72/603,561.81
  6. Step 6: Final answer
    x = 231,422.22

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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.