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Finding the Fourth Proportional to 236,340.76, 326,151.26 and 128,913.10

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Solution

The fourth proportional to 236,340.76, 326,151.26 and 128,913.10 is: 177,900.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,340.76 : 326,151.26 = 128,913.10 : x
  2. Step 2: Convert to fraction form
    236,340.76/326,151.26 = 128,913.10/x
  3. Step 3: Cross multiply
    236,340.76x = 326,151.26 × 128,913.10
  4. Step 4: Simplify right side
    236,340.76x = 42,045,170,317.79
  5. Step 5: Solve for x
    x = 42,045,170,317.79/236,340.76
  6. Step 6: Final answer
    x = 177,900.63

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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.