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Finding the Fourth Proportional to 357,634, 535,634.52 and 170,776.72

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Solution

The fourth proportional to 357,634, 535,634.52 and 170,776.72 is: 255,775.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,634 : 535,634.52 = 170,776.72 : x
  2. Step 2: Convert to fraction form
    357,634/535,634.52 = 170,776.72/x
  3. Step 3: Cross multiply
    357,634x = 535,634.52 × 170,776.72
  4. Step 4: Simplify right side
    357,634x = 91,473,906,444.37
  5. Step 5: Solve for x
    x = 91,473,906,444.37/357,634
  6. Step 6: Final answer
    x = 255,775.20

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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.