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Finding the Fourth Proportional to 245,262.60, 338,584.86 and 160,509.12

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Solution

The fourth proportional to 245,262.60, 338,584.86 and 160,509.12 is: 221,582.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,262.60 : 338,584.86 = 160,509.12 : x
  2. Step 2: Convert to fraction form
    245,262.60/338,584.86 = 160,509.12/x
  3. Step 3: Cross multiply
    245,262.60x = 338,584.86 × 160,509.12
  4. Step 4: Simplify right side
    245,262.60x = 54,345,957,923.92
  5. Step 5: Solve for x
    x = 54,345,957,923.92/245,262.60
  6. Step 6: Final answer
    x = 221,582.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.