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Finding the Fourth Proportional to 281,600.89, 388,605.99 and 152,536.90

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Solution

The fourth proportional to 281,600.89, 388,605.99 and 152,536.90 is: 210,499.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,600.89 : 388,605.99 = 152,536.90 : x
  2. Step 2: Convert to fraction form
    281,600.89/388,605.99 = 152,536.90/x
  3. Step 3: Cross multiply
    281,600.89x = 388,605.99 × 152,536.90
  4. Step 4: Simplify right side
    281,600.89x = 59,276,753,036.03
  5. Step 5: Solve for x
    x = 59,276,753,036.03/281,600.89
  6. Step 6: Final answer
    x = 210,499.17

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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.