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Finding the Fourth Proportional to 275,797.20, 380,587.32 and 153,283.88

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Solution

The fourth proportional to 275,797.20, 380,587.32 and 153,283.88 is: 211,524.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,797.20 : 380,587.32 = 153,283.88 : x
  2. Step 2: Convert to fraction form
    275,797.20/380,587.32 = 153,283.88/x
  3. Step 3: Cross multiply
    275,797.20x = 380,587.32 × 153,283.88
  4. Step 4: Simplify right side
    275,797.20x = 58,337,901,088.40
  5. Step 5: Solve for x
    x = 58,337,901,088.40/275,797.20
  6. Step 6: Final answer
    x = 211,524.63

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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.