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Finding the Fourth Proportional to 152,450.70, 228,805.65 and 68,340.30

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Solution

The fourth proportional to 152,450.70, 228,805.65 and 68,340.30 is: 102,568.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,450.70 : 228,805.65 = 68,340.30 : x
  2. Step 2: Convert to fraction form
    152,450.70/228,805.65 = 68,340.30/x
  3. Step 3: Cross multiply
    152,450.70x = 228,805.65 × 68,340.30
  4. Step 4: Simplify right side
    152,450.70x = 15,636,646,762.70
  5. Step 5: Solve for x
    x = 15,636,646,762.70/152,450.70
  6. Step 6: Final answer
    x = 102,568.55

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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.