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Finding the Fourth Proportional to 245,121.88, 367,683.12 and 76,643.12

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Solution

The fourth proportional to 245,121.88, 367,683.12 and 76,643.12 is: 114,964.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,121.88 : 367,683.12 = 76,643.12 : x
  2. Step 2: Convert to fraction form
    245,121.88/367,683.12 = 76,643.12/x
  3. Step 3: Cross multiply
    245,121.88x = 367,683.12 × 76,643.12
  4. Step 4: Simplify right side
    245,121.88x = 28,180,381,488.13
  5. Step 5: Solve for x
    x = 28,180,381,488.13/245,121.88
  6. Step 6: Final answer
    x = 114,964.77

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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.