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Finding the Fourth Proportional to 236,032.51, 325,720.72 and 128,603.31

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Solution

The fourth proportional to 236,032.51, 325,720.72 and 128,603.31 is: 177,470.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,032.51 : 325,720.72 = 128,603.31 : x
  2. Step 2: Convert to fraction form
    236,032.51/325,720.72 = 128,603.31/x
  3. Step 3: Cross multiply
    236,032.51x = 325,720.72 × 128,603.31
  4. Step 4: Simplify right side
    236,032.51x = 41,888,762,727.58
  5. Step 5: Solve for x
    x = 41,888,762,727.58/236,032.51
  6. Step 6: Final answer
    x = 177,470.31

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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.