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Finding the Fourth Proportional to 351,129.60, 526,089.60 and 163,756.80

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Solution

The fourth proportional to 351,129.60, 526,089.60 and 163,756.80 is: 245,353.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,129.60 : 526,089.60 = 163,756.80 : x
  2. Step 2: Convert to fraction form
    351,129.60/526,089.60 = 163,756.80/x
  3. Step 3: Cross multiply
    351,129.60x = 526,089.60 × 163,756.80
  4. Step 4: Simplify right side
    351,129.60x = 86,150,749,409.28
  5. Step 5: Solve for x
    x = 86,150,749,409.28/351,129.60
  6. Step 6: Final answer
    x = 245,353.14

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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.