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Finding the Fourth Proportional to 401,581.68, 602,246.72 and 145,381.92

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Solution

The fourth proportional to 401,581.68, 602,246.72 and 145,381.92 is: 218,027.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,581.68 : 602,246.72 = 145,381.92 : x
  2. Step 2: Convert to fraction form
    401,581.68/602,246.72 = 145,381.92/x
  3. Step 3: Cross multiply
    401,581.68x = 602,246.72 × 145,381.92
  4. Step 4: Simplify right side
    401,581.68x = 87,555,784,467.30
  5. Step 5: Solve for x
    x = 87,555,784,467.30/401,581.68
  6. Step 6: Final answer
    x = 218,027.34

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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.