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Finding the Fourth Proportional to 288,558.20, 432,837.30 and 170,286.20

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Solution

The fourth proportional to 288,558.20, 432,837.30 and 170,286.20 is: 255,429.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,558.20 : 432,837.30 = 170,286.20 : x
  2. Step 2: Convert to fraction form
    288,558.20/432,837.30 = 170,286.20/x
  3. Step 3: Cross multiply
    288,558.20x = 432,837.30 × 170,286.20
  4. Step 4: Simplify right side
    288,558.20x = 73,706,219,035.26
  5. Step 5: Solve for x
    x = 73,706,219,035.26/288,558.20
  6. Step 6: Final answer
    x = 255,429.30

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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.