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Finding the Fourth Proportional to 245,653.40, 368,438.88 and 68,178.44

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Solution

The fourth proportional to 245,653.40, 368,438.88 and 68,178.44 is: 102,256.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,653.40 : 368,438.88 = 68,178.44 : x
  2. Step 2: Convert to fraction form
    245,653.40/368,438.88 = 68,178.44/x
  3. Step 3: Cross multiply
    245,653.40x = 368,438.88 × 68,178.44
  4. Step 4: Simplify right side
    245,653.40x = 25,119,588,073.75
  5. Step 5: Solve for x
    x = 25,119,588,073.75/245,653.40
  6. Step 6: Final answer
    x = 102,256.22

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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.