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Finding the Fourth Proportional to 288,620.40, 432,930.60 and 182,332.20

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Solution

The fourth proportional to 288,620.40, 432,930.60 and 182,332.20 is: 273,498.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,620.40 : 432,930.60 = 182,332.20 : x
  2. Step 2: Convert to fraction form
    288,620.40/432,930.60 = 182,332.20/x
  3. Step 3: Cross multiply
    288,620.40x = 432,930.60 × 182,332.20
  4. Step 4: Simplify right side
    288,620.40x = 78,937,188,745.32
  5. Step 5: Solve for x
    x = 78,937,188,745.32/288,620.40
  6. Step 6: Final answer
    x = 273,498.30

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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.