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Finding the Fourth Proportional to 238,319.70, 328,883.13 and 130,891.02

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Solution

The fourth proportional to 238,319.70, 328,883.13 and 130,891.02 is: 180,630.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,319.70 : 328,883.13 = 130,891.02 : x
  2. Step 2: Convert to fraction form
    238,319.70/328,883.13 = 130,891.02/x
  3. Step 3: Cross multiply
    238,319.70x = 328,883.13 × 130,891.02
  4. Step 4: Simplify right side
    238,319.70x = 43,047,848,346.49
  5. Step 5: Solve for x
    x = 43,047,848,346.49/238,319.70
  6. Step 6: Final answer
    x = 180,630.68

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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.