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Finding the Fourth Proportional to 486,651.03, 730,046.40 and 149,719.98

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Solution

The fourth proportional to 486,651.03, 730,046.40 and 149,719.98 is: 224,601.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,651.03 : 730,046.40 = 149,719.98 : x
  2. Step 2: Convert to fraction form
    486,651.03/730,046.40 = 149,719.98/x
  3. Step 3: Cross multiply
    486,651.03x = 730,046.40 × 149,719.98
  4. Step 4: Simplify right side
    486,651.03x = 109,302,532,407.07
  5. Step 5: Solve for x
    x = 109,302,532,407.07/486,651.03
  6. Step 6: Final answer
    x = 224,601.46

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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.