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Finding the Fourth Proportional to 170,298, 255,673.08 and 145,497.36

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Solution

The fourth proportional to 170,298, 255,673.08 and 145,497.36 is: 218,439.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,298 : 255,673.08 = 145,497.36 : x
  2. Step 2: Convert to fraction form
    170,298/255,673.08 = 145,497.36/x
  3. Step 3: Cross multiply
    170,298x = 255,673.08 × 145,497.36
  4. Step 4: Simplify right side
    170,298x = 37,199,758,163.07
  5. Step 5: Solve for x
    x = 37,199,758,163.07/170,298
  6. Step 6: Final answer
    x = 218,439.20

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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.