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Finding the Fourth Proportional to 236,159.30, 325,894.65 and 128,725.22

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Solution

The fourth proportional to 236,159.30, 325,894.65 and 128,725.22 is: 177,637.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,159.30 : 325,894.65 = 128,725.22 : x
  2. Step 2: Convert to fraction form
    236,159.30/325,894.65 = 128,725.22/x
  3. Step 3: Cross multiply
    236,159.30x = 325,894.65 × 128,725.22
  4. Step 4: Simplify right side
    236,159.30x = 41,950,860,518.07
  5. Step 5: Solve for x
    x = 41,950,860,518.07/236,159.30
  6. Step 6: Final answer
    x = 177,637.98

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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.