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Finding the Fourth Proportional to 400,800.96, 601,207.20 and 130,927.68

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Solution

The fourth proportional to 400,800.96, 601,207.20 and 130,927.68 is: 196,393.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,800.96 : 601,207.20 = 130,927.68 : x
  2. Step 2: Convert to fraction form
    400,800.96/601,207.20 = 130,927.68/x
  3. Step 3: Cross multiply
    400,800.96x = 601,207.20 × 130,927.68
  4. Step 4: Simplify right side
    400,800.96x = 78,714,663,895.30
  5. Step 5: Solve for x
    x = 78,714,663,895.30/400,800.96
  6. Step 6: Final answer
    x = 196,393.40

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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.