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Finding the Fourth Proportional to 307,849.40, 461,817.30 and 97,465.40

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Solution

The fourth proportional to 307,849.40, 461,817.30 and 97,465.40 is: 146,211.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,849.40 : 461,817.30 = 97,465.40 : x
  2. Step 2: Convert to fraction form
    307,849.40/461,817.30 = 97,465.40/x
  3. Step 3: Cross multiply
    307,849.40x = 461,817.30 × 97,465.40
  4. Step 4: Simplify right side
    307,849.40x = 45,011,207,871.42
  5. Step 5: Solve for x
    x = 45,011,207,871.42/307,849.40
  6. Step 6: Final answer
    x = 146,211.78

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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.