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Finding the Fourth Proportional to 486,615.16, 729,992.54 and 149,684.23

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Solution

The fourth proportional to 486,615.16, 729,992.54 and 149,684.23 is: 224,547.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,615.16 : 729,992.54 = 149,684.23 : x
  2. Step 2: Convert to fraction form
    486,615.16/729,992.54 = 149,684.23/x
  3. Step 3: Cross multiply
    486,615.16x = 729,992.54 × 149,684.23
  4. Step 4: Simplify right side
    486,615.16x = 109,268,371,255.64
  5. Step 5: Solve for x
    x = 109,268,371,255.64/486,615.16
  6. Step 6: Final answer
    x = 224,547.82

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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.