Home / 642,936.69-964,310.27-169,655.31

Finding the Fourth Proportional to 642,936.69, 964,310.27 and 169,655.31

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Solution

The fourth proportional to 642,936.69, 964,310.27 and 169,655.31 is: 254,457.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,936.69 : 964,310.27 = 169,655.31 : x
  2. Step 2: Convert to fraction form
    642,936.69/964,310.27 = 169,655.31/x
  3. Step 3: Cross multiply
    642,936.69x = 964,310.27 × 169,655.31
  4. Step 4: Simplify right side
    642,936.69x = 163,600,356,944.76
  5. Step 5: Solve for x
    x = 163,600,356,944.76/642,936.69
  6. Step 6: Final answer
    x = 254,457.96

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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.