Home / 272,817.12-409,225.71-83,278.50

Finding the Fourth Proportional to 272,817.12, 409,225.71 and 83,278.50

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Solution

The fourth proportional to 272,817.12, 409,225.71 and 83,278.50 is: 124,917.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,817.12 : 409,225.71 = 83,278.50 : x
  2. Step 2: Convert to fraction form
    272,817.12/409,225.71 = 83,278.50/x
  3. Step 3: Cross multiply
    272,817.12x = 409,225.71 × 83,278.50
  4. Step 4: Simplify right side
    272,817.12x = 34,079,703,290.24
  5. Step 5: Solve for x
    x = 34,079,703,290.24/272,817.12
  6. Step 6: Final answer
    x = 124,917.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.