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Finding the Fourth Proportional to 612,633.68, 918,846.84 and 169,298

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Solution

The fourth proportional to 612,633.68, 918,846.84 and 169,298 is: 253,918.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,633.68 : 918,846.84 = 169,298 : x
  2. Step 2: Convert to fraction form
    612,633.68/918,846.84 = 169,298/x
  3. Step 3: Cross multiply
    612,633.68x = 918,846.84 × 169,298
  4. Step 4: Simplify right side
    612,633.68x = 155,558,932,318.32
  5. Step 5: Solve for x
    x = 155,558,932,318.32/612,633.68
  6. Step 6: Final answer
    x = 253,918.35

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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.