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Finding the Fourth Proportional to 346,865.60, 520,201.20 and 110,280.80

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Solution

The fourth proportional to 346,865.60, 520,201.20 and 110,280.80 is: 165,390.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,865.60 : 520,201.20 = 110,280.80 : x
  2. Step 2: Convert to fraction form
    346,865.60/520,201.20 = 110,280.80/x
  3. Step 3: Cross multiply
    346,865.60x = 520,201.20 × 110,280.80
  4. Step 4: Simplify right side
    346,865.60x = 57,368,204,496.96
  5. Step 5: Solve for x
    x = 57,368,204,496.96/346,865.60
  6. Step 6: Final answer
    x = 165,390.30

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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.