Home / 426,869.37-640,634.55-160,871.85

Finding the Fourth Proportional to 426,869.37, 640,634.55 and 160,871.85

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Solution

The fourth proportional to 426,869.37, 640,634.55 and 160,871.85 is: 241,432.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,869.37 : 640,634.55 = 160,871.85 : x
  2. Step 2: Convert to fraction form
    426,869.37/640,634.55 = 160,871.85/x
  3. Step 3: Cross multiply
    426,869.37x = 640,634.55 × 160,871.85
  4. Step 4: Simplify right side
    426,869.37x = 103,060,065,232.42
  5. Step 5: Solve for x
    x = 103,060,065,232.42/426,869.37
  6. Step 6: Final answer
    x = 241,432.33

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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.