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Finding the Fourth Proportional to 275,151.32, 379,728.30 and 152,683.76

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Solution

The fourth proportional to 275,151.32, 379,728.30 and 152,683.76 is: 210,714.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,151.32 : 379,728.30 = 152,683.76 : x
  2. Step 2: Convert to fraction form
    275,151.32/379,728.30 = 152,683.76/x
  3. Step 3: Cross multiply
    275,151.32x = 379,728.30 × 152,683.76
  4. Step 4: Simplify right side
    275,151.32x = 57,978,344,622.41
  5. Step 5: Solve for x
    x = 57,978,344,622.41/275,151.32
  6. Step 6: Final answer
    x = 210,714.40

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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.