Home / 208,323.17-312,420.26-75,186.57

Finding the Fourth Proportional to 208,323.17, 312,420.26 and 75,186.57

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Solution

The fourth proportional to 208,323.17, 312,420.26 and 75,186.57 is: 112,756.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,323.17 : 312,420.26 = 75,186.57 : x
  2. Step 2: Convert to fraction form
    208,323.17/312,420.26 = 75,186.57/x
  3. Step 3: Cross multiply
    208,323.17x = 312,420.26 × 75,186.57
  4. Step 4: Simplify right side
    208,323.17x = 23,489,807,371.98
  5. Step 5: Solve for x
    x = 23,489,807,371.98/208,323.17
  6. Step 6: Final answer
    x = 112,756.58

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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.