Home / 221,912.32-306,241.04-126,417.60

Finding the Fourth Proportional to 221,912.32, 306,241.04 and 126,417.60

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Solution

The fourth proportional to 221,912.32, 306,241.04 and 126,417.60 is: 174,457.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,912.32 : 306,241.04 = 126,417.60 : x
  2. Step 2: Convert to fraction form
    221,912.32/306,241.04 = 126,417.60/x
  3. Step 3: Cross multiply
    221,912.32x = 306,241.04 × 126,417.60
  4. Step 4: Simplify right side
    221,912.32x = 38,714,257,298.30
  5. Step 5: Solve for x
    x = 38,714,257,298.30/221,912.32
  6. Step 6: Final answer
    x = 174,457.45

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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.