Home / 307,415.07-461,165.76-107,689.74

Finding the Fourth Proportional to 307,415.07, 461,165.76 and 107,689.74

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Solution

The fourth proportional to 307,415.07, 461,165.76 and 107,689.74 is: 161,549.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,415.07 : 461,165.76 = 107,689.74 : x
  2. Step 2: Convert to fraction form
    307,415.07/461,165.76 = 107,689.74/x
  3. Step 3: Cross multiply
    307,415.07x = 461,165.76 × 107,689.74
  4. Step 4: Simplify right side
    307,415.07x = 49,662,820,791.30
  5. Step 5: Solve for x
    x = 49,662,820,791.30/307,415.07
  6. Step 6: Final answer
    x = 161,549.73

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1.5x scale

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.