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Finding the Fourth Proportional to 290,156.59, 400,433.87 and 162,832.20

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Solution

The fourth proportional to 290,156.59, 400,433.87 and 162,832.20 is: 224,718.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,156.59 : 400,433.87 = 162,832.20 : x
  2. Step 2: Convert to fraction form
    290,156.59/400,433.87 = 162,832.20/x
  3. Step 3: Cross multiply
    290,156.59x = 400,433.87 × 162,832.20
  4. Step 4: Simplify right side
    290,156.59x = 65,203,528,006.61
  5. Step 5: Solve for x
    x = 65,203,528,006.61/290,156.59
  6. Step 6: Final answer
    x = 224,718.41

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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.