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Finding the Fourth Proportional to 157,518, 236,288.82 and 45,197.28

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Solution

The fourth proportional to 157,518, 236,288.82 and 45,197.28 is: 67,799.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,518 : 236,288.82 = 45,197.28 : x
  2. Step 2: Convert to fraction form
    157,518/236,288.82 = 45,197.28/x
  3. Step 3: Cross multiply
    157,518x = 236,288.82 × 45,197.28
  4. Step 4: Simplify right side
    157,518x = 10,679,611,958.41
  5. Step 5: Solve for x
    x = 10,679,611,958.41/157,518
  6. Step 6: Final answer
    x = 67,799.31

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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.