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Finding the Fourth Proportional to 290,181.47, 400,468.20 and 162,857.07

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Solution

The fourth proportional to 290,181.47, 400,468.20 and 162,857.07 is: 224,752.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,181.47 : 400,468.20 = 162,857.07 : x
  2. Step 2: Convert to fraction form
    290,181.47/400,468.20 = 162,857.07/x
  3. Step 3: Cross multiply
    290,181.47x = 400,468.20 × 162,857.07
  4. Step 4: Simplify right side
    290,181.47x = 65,219,077,680.17
  5. Step 5: Solve for x
    x = 65,219,077,680.17/290,181.47
  6. Step 6: Final answer
    x = 224,752.73

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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.