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Finding the Fourth Proportional to 262,077.92, 393,114.72 and 75,089.60

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Solution

The fourth proportional to 262,077.92, 393,114.72 and 75,089.60 is: 112,633.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,077.92 : 393,114.72 = 75,089.60 : x
  2. Step 2: Convert to fraction form
    262,077.92/393,114.72 = 75,089.60/x
  3. Step 3: Cross multiply
    262,077.92x = 393,114.72 × 75,089.60
  4. Step 4: Simplify right side
    262,077.92x = 29,518,827,078.91
  5. Step 5: Solve for x
    x = 29,518,827,078.91/262,077.92
  6. Step 6: Final answer
    x = 112,633.78

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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.