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Finding the Fourth Proportional to 245,748.37, 368,711.30 and 85,847.93

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Solution

The fourth proportional to 245,748.37, 368,711.30 and 85,847.93 is: 128,802.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,748.37 : 368,711.30 = 85,847.93 : x
  2. Step 2: Convert to fraction form
    245,748.37/368,711.30 = 85,847.93/x
  3. Step 3: Cross multiply
    245,748.37x = 368,711.30 × 85,847.93
  4. Step 4: Simplify right side
    245,748.37x = 31,653,101,872.61
  5. Step 5: Solve for x
    x = 31,653,101,872.61/245,748.37
  6. Step 6: Final answer
    x = 128,802.90

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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.