Home / 307,108.16-423,791.74-169,259.71

Finding the Fourth Proportional to 307,108.16, 423,791.74 and 169,259.71

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Solution

The fourth proportional to 307,108.16, 423,791.74 and 169,259.71 is: 233,568.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,108.16 : 423,791.74 = 169,259.71 : x
  2. Step 2: Convert to fraction form
    307,108.16/423,791.74 = 169,259.71/x
  3. Step 3: Cross multiply
    307,108.16x = 423,791.74 × 169,259.71
  4. Step 4: Simplify right side
    307,108.16x = 71,730,867,012.80
  5. Step 5: Solve for x
    x = 71,730,867,012.80/307,108.16
  6. Step 6: Final answer
    x = 233,568.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.