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Finding the Fourth Proportional to 238,322.45, 328,886.93 and 130,893.77

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Solution

The fourth proportional to 238,322.45, 328,886.93 and 130,893.77 is: 180,634.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,322.45 : 328,886.93 = 130,893.77 : x
  2. Step 2: Convert to fraction form
    238,322.45/328,886.93 = 130,893.77/x
  3. Step 3: Cross multiply
    238,322.45x = 328,886.93 × 130,893.77
  4. Step 4: Simplify right side
    238,322.45x = 43,049,250,171.43
  5. Step 5: Solve for x
    x = 43,049,250,171.43/238,322.45
  6. Step 6: Final answer
    x = 180,634.47

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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.