Home / 221,904.28-306,211.35-126,392.32

Finding the Fourth Proportional to 221,904.28, 306,211.35 and 126,392.32

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Solution

The fourth proportional to 221,904.28, 306,211.35 and 126,392.32 is: 174,411.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,904.28 : 306,211.35 = 126,392.32 : x
  2. Step 2: Convert to fraction form
    221,904.28/306,211.35 = 126,392.32/x
  3. Step 3: Cross multiply
    221,904.28x = 306,211.35 × 126,392.32
  4. Step 4: Simplify right side
    221,904.28x = 38,702,762,936.83
  5. Step 5: Solve for x
    x = 38,702,762,936.83/221,904.28
  6. Step 6: Final answer
    x = 174,411.97

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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.