Home / 261,845.09-361,387.26-154,426.94

Finding the Fourth Proportional to 261,845.09, 361,387.26 and 154,426.94

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Solution

The fourth proportional to 261,845.09, 361,387.26 and 154,426.94 is: 213,133.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,845.09 : 361,387.26 = 154,426.94 : x
  2. Step 2: Convert to fraction form
    261,845.09/361,387.26 = 154,426.94/x
  3. Step 3: Cross multiply
    261,845.09x = 361,387.26 × 154,426.94
  4. Step 4: Simplify right side
    261,845.09x = 55,807,926,909.85
  5. Step 5: Solve for x
    x = 55,807,926,909.85/261,845.09
  6. Step 6: Final answer
    x = 213,133.38

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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.