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Finding the Fourth Proportional to 406,004.40, 608,747.40 and 169,441.20

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Solution

The fourth proportional to 406,004.40, 608,747.40 and 169,441.20 is: 254,053.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,004.40 : 608,747.40 = 169,441.20 : x
  2. Step 2: Convert to fraction form
    406,004.40/608,747.40 = 169,441.20/x
  3. Step 3: Cross multiply
    406,004.40x = 608,747.40 × 169,441.20
  4. Step 4: Simplify right side
    406,004.40x = 103,146,889,952.88
  5. Step 5: Solve for x
    x = 103,146,889,952.88/406,004.40
  6. Step 6: Final answer
    x = 254,053.63

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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.