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Finding the Fourth Proportional to 236,088.81, 325,802.62 and 128,658.87

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Solution

The fourth proportional to 236,088.81, 325,802.62 and 128,658.87 is: 177,549.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,088.81 : 325,802.62 = 128,658.87 : x
  2. Step 2: Convert to fraction form
    236,088.81/325,802.62 = 128,658.87/x
  3. Step 3: Cross multiply
    236,088.81x = 325,802.62 × 128,658.87
  4. Step 4: Simplify right side
    236,088.81x = 41,917,396,932.24
  5. Step 5: Solve for x
    x = 41,917,396,932.24/236,088.81
  6. Step 6: Final answer
    x = 177,549.27

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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.