Home / 221,926.28-306,242.50-126,415.40

Finding the Fourth Proportional to 221,926.28, 306,242.50 and 126,415.40

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Solution

The fourth proportional to 221,926.28, 306,242.50 and 126,415.40 is: 174,444.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,926.28 : 306,242.50 = 126,415.40 : x
  2. Step 2: Convert to fraction form
    221,926.28/306,242.50 = 126,415.40/x
  3. Step 3: Cross multiply
    221,926.28x = 306,242.50 × 126,415.40
  4. Step 4: Simplify right side
    221,926.28x = 38,713,768,134.50
  5. Step 5: Solve for x
    x = 38,713,768,134.50/221,926.28
  6. Step 6: Final answer
    x = 174,444.27

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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.