Home / 465,311.18-642,099.71-261,356.57

Finding the Fourth Proportional to 465,311.18, 642,099.71 and 261,356.57

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Solution

The fourth proportional to 465,311.18, 642,099.71 and 261,356.57 is: 360,655.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,311.18 : 642,099.71 = 261,356.57 : x
  2. Step 2: Convert to fraction form
    465,311.18/642,099.71 = 261,356.57/x
  3. Step 3: Cross multiply
    465,311.18x = 642,099.71 × 261,356.57
  4. Step 4: Simplify right side
    465,311.18x = 167,816,979,796.04
  5. Step 5: Solve for x
    x = 167,816,979,796.04/465,311.18
  6. Step 6: Final answer
    x = 360,655.38

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1.5x scale

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.