Home / 307,731.10-461,553.45-97,390.30

Finding the Fourth Proportional to 307,731.10, 461,553.45 and 97,390.30

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Solution

The fourth proportional to 307,731.10, 461,553.45 and 97,390.30 is: 146,071.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,731.10 : 461,553.45 = 97,390.30 : x
  2. Step 2: Convert to fraction form
    307,731.10/461,553.45 = 97,390.30/x
  3. Step 3: Cross multiply
    307,731.10x = 461,553.45 × 97,390.30
  4. Step 4: Simplify right side
    307,731.10x = 44,950,828,961.54
  5. Step 5: Solve for x
    x = 44,950,828,961.54/307,731.10
  6. Step 6: Final answer
    x = 146,071.78

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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.