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Finding the Fourth Proportional to 245,393.45, 368,094.80 and 76,910.05

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Solution

The fourth proportional to 245,393.45, 368,094.80 and 76,910.05 is: 115,366.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,393.45 : 368,094.80 = 76,910.05 : x
  2. Step 2: Convert to fraction form
    245,393.45/368,094.80 = 76,910.05/x
  3. Step 3: Cross multiply
    245,393.45x = 368,094.80 × 76,910.05
  4. Step 4: Simplify right side
    245,393.45x = 28,310,189,472.74
  5. Step 5: Solve for x
    x = 28,310,189,472.74/245,393.45
  6. Step 6: Final answer
    x = 115,366.52

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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.