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Finding the Fourth Proportional to 238,385.44, 328,973.76 and 130,956.64

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Solution

The fourth proportional to 238,385.44, 328,973.76 and 130,956.64 is: 180,721.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,385.44 : 328,973.76 = 130,956.64 : x
  2. Step 2: Convert to fraction form
    238,385.44/328,973.76 = 130,956.64/x
  3. Step 3: Cross multiply
    238,385.44x = 328,973.76 × 130,956.64
  4. Step 4: Simplify right side
    238,385.44x = 43,081,298,257.77
  5. Step 5: Solve for x
    x = 43,081,298,257.77/238,385.44
  6. Step 6: Final answer
    x = 180,721.18

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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.