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Finding the Fourth Proportional to 486,615.03, 729,992.35 and 149,684.11

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Solution

The fourth proportional to 486,615.03, 729,992.35 and 149,684.11 is: 224,547.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,615.03 : 729,992.35 = 149,684.11 : x
  2. Step 2: Convert to fraction form
    486,615.03/729,992.35 = 149,684.11/x
  3. Step 3: Cross multiply
    486,615.03x = 729,992.35 × 149,684.11
  4. Step 4: Simplify right side
    486,615.03x = 109,268,255,216.56
  5. Step 5: Solve for x
    x = 109,268,255,216.56/486,615.03
  6. Step 6: Final answer
    x = 224,547.64

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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.