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Finding the Fourth Proportional to 397,332.30, 595,998.45 and 172,800.30

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Solution

The fourth proportional to 397,332.30, 595,998.45 and 172,800.30 is: 259,200.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,332.30 : 595,998.45 = 172,800.30 : x
  2. Step 2: Convert to fraction form
    397,332.30/595,998.45 = 172,800.30/x
  3. Step 3: Cross multiply
    397,332.30x = 595,998.45 × 172,800.30
  4. Step 4: Simplify right side
    397,332.30x = 102,988,710,959.54
  5. Step 5: Solve for x
    x = 102,988,710,959.54/397,332.30
  6. Step 6: Final answer
    x = 259,200.45

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1.5x scale

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.