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Finding the Fourth Proportional to 289,934.15, 400,122.59 and 181,102.92

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Solution

The fourth proportional to 289,934.15, 400,122.59 and 181,102.92 is: 249,930.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,934.15 : 400,122.59 = 181,102.92 : x
  2. Step 2: Convert to fraction form
    289,934.15/400,122.59 = 181,102.92/x
  3. Step 3: Cross multiply
    289,934.15x = 400,122.59 × 181,102.92
  4. Step 4: Simplify right side
    289,934.15x = 72,463,369,406.96
  5. Step 5: Solve for x
    x = 72,463,369,406.96/289,934.15
  6. Step 6: Final answer
    x = 249,930.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.