Home / 208,455.50-312,679.94-66,298.73

Finding the Fourth Proportional to 208,455.50, 312,679.94 and 66,298.73

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Solution

The fourth proportional to 208,455.50, 312,679.94 and 66,298.73 is: 99,447.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,455.50 : 312,679.94 = 66,298.73 : x
  2. Step 2: Convert to fraction form
    208,455.50/312,679.94 = 66,298.73/x
  3. Step 3: Cross multiply
    208,455.50x = 312,679.94 × 66,298.73
  4. Step 4: Simplify right side
    208,455.50x = 20,730,281,355.08
  5. Step 5: Solve for x
    x = 20,730,281,355.08/208,455.50
  6. Step 6: Final answer
    x = 99,447.03

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1.5x scale

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.