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Finding the Fourth Proportional to 309,673.34, 427,353.75 and 173,737.34

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Solution

The fourth proportional to 309,673.34, 427,353.75 and 173,737.34 is: 239,760.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,673.34 : 427,353.75 = 173,737.34 : x
  2. Step 2: Convert to fraction form
    309,673.34/427,353.75 = 173,737.34/x
  3. Step 3: Cross multiply
    309,673.34x = 427,353.75 × 173,737.34
  4. Step 4: Simplify right side
    309,673.34x = 74,247,303,764.03
  5. Step 5: Solve for x
    x = 74,247,303,764.03/309,673.34
  6. Step 6: Final answer
    x = 239,760.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.