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Finding the Fourth Proportional to 152,425.70, 228,768.15 and 68,315.30

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Solution

The fourth proportional to 152,425.70, 228,768.15 and 68,315.30 is: 102,531.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,425.70 : 228,768.15 = 68,315.30 : x
  2. Step 2: Convert to fraction form
    152,425.70/228,768.15 = 68,315.30/x
  3. Step 3: Cross multiply
    152,425.70x = 228,768.15 × 68,315.30
  4. Step 4: Simplify right side
    152,425.70x = 15,628,364,797.70
  5. Step 5: Solve for x
    x = 15,628,364,797.70/152,425.70
  6. Step 6: Final answer
    x = 102,531.04

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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.