Home / 272,919.06-407,459.59-208,540.28

Finding the Fourth Proportional to 272,919.06, 407,459.59 and 208,540.28

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Solution

The fourth proportional to 272,919.06, 407,459.59 and 208,540.28 is: 311,344.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,919.06 : 407,459.59 = 208,540.28 : x
  2. Step 2: Convert to fraction form
    272,919.06/407,459.59 = 208,540.28/x
  3. Step 3: Cross multiply
    272,919.06x = 407,459.59 × 208,540.28
  4. Step 4: Simplify right side
    272,919.06x = 84,971,734,428.64
  5. Step 5: Solve for x
    x = 84,971,734,428.64/272,919.06
  6. Step 6: Final answer
    x = 311,344.08

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.