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Finding the Fourth Proportional to 397,752.12, 548,922.42 and 228,011.76

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Solution

The fourth proportional to 397,752.12, 548,922.42 and 228,011.76 is: 314,670.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,752.12 : 548,922.42 = 228,011.76 : x
  2. Step 2: Convert to fraction form
    397,752.12/548,922.42 = 228,011.76/x
  3. Step 3: Cross multiply
    397,752.12x = 548,922.42 × 228,011.76
  4. Step 4: Simplify right side
    397,752.12x = 125,160,767,087.66
  5. Step 5: Solve for x
    x = 125,160,767,087.66/397,752.12
  6. Step 6: Final answer
    x = 314,670.27

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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.