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Finding the Fourth Proportional to 475,498.32, 656,183.88 and 274,290

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Solution

The fourth proportional to 475,498.32, 656,183.88 and 274,290 is: 378,518.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,498.32 : 656,183.88 = 274,290 : x
  2. Step 2: Convert to fraction form
    475,498.32/656,183.88 = 274,290/x
  3. Step 3: Cross multiply
    475,498.32x = 656,183.88 × 274,290
  4. Step 4: Simplify right side
    475,498.32x = 179,984,676,445.20
  5. Step 5: Solve for x
    x = 179,984,676,445.20/475,498.32
  6. Step 6: Final answer
    x = 378,518.01

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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.