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Finding the Fourth Proportional to 171,835.40, 257,534.40 and 153,027.20

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Solution

The fourth proportional to 171,835.40, 257,534.40 and 153,027.20 is: 229,346.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,835.40 : 257,534.40 = 153,027.20 : x
  2. Step 2: Convert to fraction form
    171,835.40/257,534.40 = 153,027.20/x
  3. Step 3: Cross multiply
    171,835.40x = 257,534.40 × 153,027.20
  4. Step 4: Simplify right side
    171,835.40x = 39,409,768,135.68
  5. Step 5: Solve for x
    x = 39,409,768,135.68/171,835.40
  6. Step 6: Final answer
    x = 229,346.04

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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.