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Finding the Fourth Proportional to 421,813.92, 582,103.24 and 230,827.32

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Solution

The fourth proportional to 421,813.92, 582,103.24 and 230,827.32 is: 318,541.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,813.92 : 582,103.24 = 230,827.32 : x
  2. Step 2: Convert to fraction form
    421,813.92/582,103.24 = 230,827.32/x
  3. Step 3: Cross multiply
    421,813.92x = 582,103.24 × 230,827.32
  4. Step 4: Simplify right side
    421,813.92x = 134,365,330,852.52
  5. Step 5: Solve for x
    x = 134,365,330,852.52/421,813.92
  6. Step 6: Final answer
    x = 318,541.72

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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.