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Finding the Fourth Proportional to 323,649.64, 485,681.82 and 157,346.92

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Solution

The fourth proportional to 323,649.64, 485,681.82 and 157,346.92 is: 236,121.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,649.64 : 485,681.82 = 157,346.92 : x
  2. Step 2: Convert to fraction form
    323,649.64/485,681.82 = 157,346.92/x
  3. Step 3: Cross multiply
    323,649.64x = 485,681.82 × 157,346.92
  4. Step 4: Simplify right side
    323,649.64x = 76,420,538,476.99
  5. Step 5: Solve for x
    x = 76,420,538,476.99/323,649.64
  6. Step 6: Final answer
    x = 236,121.19

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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.