Home / 309,182.40-426,711.24-181,869.84

Finding the Fourth Proportional to 309,182.40, 426,711.24 and 181,869.84

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Solution

The fourth proportional to 309,182.40, 426,711.24 and 181,869.84 is: 251,003.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,182.40 : 426,711.24 = 181,869.84 : x
  2. Step 2: Convert to fraction form
    309,182.40/426,711.24 = 181,869.84/x
  3. Step 3: Cross multiply
    309,182.40x = 426,711.24 × 181,869.84
  4. Step 4: Simplify right side
    309,182.40x = 77,605,904,945.00
  5. Step 5: Solve for x
    x = 77,605,904,945.00/309,182.40
  6. Step 6: Final answer
    x = 251,003.63

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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.