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Finding the Fourth Proportional to 236,392.58, 326,215.28 and 128,962.58

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Solution

The fourth proportional to 236,392.58, 326,215.28 and 128,962.58 is: 177,964.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,392.58 : 326,215.28 = 128,962.58 : x
  2. Step 2: Convert to fraction form
    236,392.58/326,215.28 = 128,962.58/x
  3. Step 3: Cross multiply
    236,392.58x = 326,215.28 × 128,962.58
  4. Step 4: Simplify right side
    236,392.58x = 42,069,564,670.51
  5. Step 5: Solve for x
    x = 42,069,564,670.51/236,392.58
  6. Step 6: Final answer
    x = 177,964.83

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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.