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Finding the Fourth Proportional to 274,466.76, 378,780.82 and 153,605.58

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Solution

The fourth proportional to 274,466.76, 378,780.82 and 153,605.58 is: 211,985.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,466.76 : 378,780.82 = 153,605.58 : x
  2. Step 2: Convert to fraction form
    274,466.76/378,780.82 = 153,605.58/x
  3. Step 3: Cross multiply
    274,466.76x = 378,780.82 × 153,605.58
  4. Step 4: Simplify right side
    274,466.76x = 58,182,847,548.98
  5. Step 5: Solve for x
    x = 58,182,847,548.98/274,466.76
  6. Step 6: Final answer
    x = 211,985.04

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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.