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Finding the Fourth Proportional to 245,396.96, 368,100.05 and 76,913.55

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Solution

The fourth proportional to 245,396.96, 368,100.05 and 76,913.55 is: 115,371.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,396.96 : 368,100.05 = 76,913.55 : x
  2. Step 2: Convert to fraction form
    245,396.96/368,100.05 = 76,913.55/x
  3. Step 3: Cross multiply
    245,396.96x = 368,100.05 × 76,913.55
  4. Step 4: Simplify right side
    245,396.96x = 28,311,881,216.11
  5. Step 5: Solve for x
    x = 28,311,881,216.11/245,396.96
  6. Step 6: Final answer
    x = 115,371.77

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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.