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Finding the Fourth Proportional to 400,165.28, 600,248.94 and 163,507.96

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Solution

The fourth proportional to 400,165.28, 600,248.94 and 163,507.96 is: 245,262.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,165.28 : 600,248.94 = 163,507.96 : x
  2. Step 2: Convert to fraction form
    400,165.28/600,248.94 = 163,507.96/x
  3. Step 3: Cross multiply
    400,165.28x = 600,248.94 × 163,507.96
  4. Step 4: Simplify right side
    400,165.28x = 98,145,477,198.76
  5. Step 5: Solve for x
    x = 98,145,477,198.76/400,165.28
  6. Step 6: Final answer
    x = 245,262.35

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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.