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Finding the Fourth Proportional to 245,115.65, 367,673.76 and 76,636.86

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Solution

The fourth proportional to 245,115.65, 367,673.76 and 76,636.86 is: 114,955.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,115.65 : 367,673.76 = 76,636.86 : x
  2. Step 2: Convert to fraction form
    245,115.65/367,673.76 = 76,636.86/x
  3. Step 3: Cross multiply
    245,115.65x = 367,673.76 × 76,636.86
  4. Step 4: Simplify right side
    245,115.65x = 28,177,362,662.39
  5. Step 5: Solve for x
    x = 28,177,362,662.39/245,115.65
  6. Step 6: Final answer
    x = 114,955.38

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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.