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Finding the Fourth Proportional to 403,337.40, 605,006.30 and 166,419.69

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Solution

The fourth proportional to 403,337.40, 605,006.30 and 166,419.69 is: 249,629.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,337.40 : 605,006.30 = 166,419.69 : x
  2. Step 2: Convert to fraction form
    403,337.40/605,006.30 = 166,419.69/x
  3. Step 3: Cross multiply
    403,337.40x = 605,006.30 × 166,419.69
  4. Step 4: Simplify right side
    403,337.40x = 100,684,960,894.05
  5. Step 5: Solve for x
    x = 100,684,960,894.05/403,337.40
  6. Step 6: Final answer
    x = 249,629.62

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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.