Home / 307,947.40-461,690.70-167,864.20

Finding the Fourth Proportional to 307,947.40, 461,690.70 and 167,864.20

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Solution

The fourth proportional to 307,947.40, 461,690.70 and 167,864.20 is: 251,670.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,947.40 : 461,690.70 = 167,864.20 : x
  2. Step 2: Convert to fraction form
    307,947.40/461,690.70 = 167,864.20/x
  3. Step 3: Cross multiply
    307,947.40x = 461,690.70 × 167,864.20
  4. Step 4: Simplify right side
    307,947.40x = 77,501,340,002.94
  5. Step 5: Solve for x
    x = 77,501,340,002.94/307,947.40
  6. Step 6: Final answer
    x = 251,670.71

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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.