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Finding the Fourth Proportional to 275,479.92, 380,320.92 and 184,967.28

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Solution

The fourth proportional to 275,479.92, 380,320.92 and 184,967.28 is: 255,361.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,479.92 : 380,320.92 = 184,967.28 : x
  2. Step 2: Convert to fraction form
    275,479.92/380,320.92 = 184,967.28/x
  3. Step 3: Cross multiply
    275,479.92x = 380,320.92 × 184,967.28
  4. Step 4: Simplify right side
    275,479.92x = 70,346,926,099.50
  5. Step 5: Solve for x
    x = 70,346,926,099.50/275,479.92
  6. Step 6: Final answer
    x = 255,361.36

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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.