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Finding the Fourth Proportional to 342,951.60, 514,427.40 and 106,318.20

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Solution

The fourth proportional to 342,951.60, 514,427.40 and 106,318.20 is: 159,477.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,951.60 : 514,427.40 = 106,318.20 : x
  2. Step 2: Convert to fraction form
    342,951.60/514,427.40 = 106,318.20/x
  3. Step 3: Cross multiply
    342,951.60x = 514,427.40 × 106,318.20
  4. Step 4: Simplify right side
    342,951.60x = 54,692,995,198.68
  5. Step 5: Solve for x
    x = 54,692,995,198.68/342,951.60
  6. Step 6: Final answer
    x = 159,477.30

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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.