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Finding the Fourth Proportional to 338,618.86, 508,004.82 and 170,219.86

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Solution

The fourth proportional to 338,618.86, 508,004.82 and 170,219.86 is: 255,368.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,618.86 : 508,004.82 = 170,219.86 : x
  2. Step 2: Convert to fraction form
    338,618.86/508,004.82 = 170,219.86/x
  3. Step 3: Cross multiply
    338,618.86x = 508,004.82 × 170,219.86
  4. Step 4: Simplify right side
    338,618.86x = 86,472,509,339.73
  5. Step 5: Solve for x
    x = 86,472,509,339.73/338,618.86
  6. Step 6: Final answer
    x = 255,368.26

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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.