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Finding the Fourth Proportional to 305,008.76, 457,063.52 and 169,886.72

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Solution

The fourth proportional to 305,008.76, 457,063.52 and 169,886.72 is: 254,579.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,008.76 : 457,063.52 = 169,886.72 : x
  2. Step 2: Convert to fraction form
    305,008.76/457,063.52 = 169,886.72/x
  3. Step 3: Cross multiply
    305,008.76x = 457,063.52 × 169,886.72
  4. Step 4: Simplify right side
    305,008.76x = 77,649,019,109.70
  5. Step 5: Solve for x
    x = 77,649,019,109.70/305,008.76
  6. Step 6: Final answer
    x = 254,579.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.