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Finding the Fourth Proportional to 235,649.27, 325,201.82 and 128,225.20

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Solution

The fourth proportional to 235,649.27, 325,201.82 and 128,225.20 is: 176,953.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,649.27 : 325,201.82 = 128,225.20 : x
  2. Step 2: Convert to fraction form
    235,649.27/325,201.82 = 128,225.20/x
  3. Step 3: Cross multiply
    235,649.27x = 325,201.82 × 128,225.20
  4. Step 4: Simplify right side
    235,649.27x = 41,699,066,142.73
  5. Step 5: Solve for x
    x = 41,699,066,142.73/235,649.27
  6. Step 6: Final answer
    x = 176,953.94

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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.