Home / 221,905.14-306,154.32-126,344.22

Finding the Fourth Proportional to 221,905.14, 306,154.32 and 126,344.22

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Solution

The fourth proportional to 221,905.14, 306,154.32 and 126,344.22 is: 174,312.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,905.14 : 306,154.32 = 126,344.22 : x
  2. Step 2: Convert to fraction form
    221,905.14/306,154.32 = 126,344.22/x
  3. Step 3: Cross multiply
    221,905.14x = 306,154.32 × 126,344.22
  4. Step 4: Simplify right side
    221,905.14x = 38,680,828,760.03
  5. Step 5: Solve for x
    x = 38,680,828,760.03/221,905.14
  6. Step 6: Final answer
    x = 174,312.45

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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.