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Finding the Fourth Proportional to 238,235.98, 328,766.16 and 130,812.88

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Solution

The fourth proportional to 238,235.98, 328,766.16 and 130,812.88 is: 180,522.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,235.98 : 328,766.16 = 130,812.88 : x
  2. Step 2: Convert to fraction form
    238,235.98/328,766.16 = 130,812.88/x
  3. Step 3: Cross multiply
    238,235.98x = 328,766.16 × 130,812.88
  4. Step 4: Simplify right side
    238,235.98x = 43,006,848,236.14
  5. Step 5: Solve for x
    x = 43,006,848,236.14/238,235.98
  6. Step 6: Final answer
    x = 180,522.05

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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.