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Finding the Fourth Proportional to 155,274.90, 232,912.35 and 129,030.90

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Solution

The fourth proportional to 155,274.90, 232,912.35 and 129,030.90 is: 193,546.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,274.90 : 232,912.35 = 129,030.90 : x
  2. Step 2: Convert to fraction form
    155,274.90/232,912.35 = 129,030.90/x
  3. Step 3: Cross multiply
    155,274.90x = 232,912.35 × 129,030.90
  4. Step 4: Simplify right side
    155,274.90x = 30,052,890,141.62
  5. Step 5: Solve for x
    x = 30,052,890,141.62/155,274.90
  6. Step 6: Final answer
    x = 193,546.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.