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Finding the Fourth Proportional to 207,068.81, 285,410.79 and 146,561.81

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Solution

The fourth proportional to 207,068.81, 285,410.79 and 146,561.81 is: 202,011.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,068.81 : 285,410.79 = 146,561.81 : x
  2. Step 2: Convert to fraction form
    207,068.81/285,410.79 = 146,561.81/x
  3. Step 3: Cross multiply
    207,068.81x = 285,410.79 × 146,561.81
  4. Step 4: Simplify right side
    207,068.81x = 41,830,320,548.88
  5. Step 5: Solve for x
    x = 41,830,320,548.88/207,068.81
  6. Step 6: Final answer
    x = 202,011.70

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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.