Home / 642,803.31-964,194.23-156,490.58

Finding the Fourth Proportional to 642,803.31, 964,194.23 and 156,490.58

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Solution

The fourth proportional to 642,803.31, 964,194.23 and 156,490.58 is: 234,733.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,803.31 : 964,194.23 = 156,490.58 : x
  2. Step 2: Convert to fraction form
    642,803.31/964,194.23 = 156,490.58/x
  3. Step 3: Cross multiply
    642,803.31x = 964,194.23 × 156,490.58
  4. Step 4: Simplify right side
    642,803.31x = 150,887,317,087.07
  5. Step 5: Solve for x
    x = 150,887,317,087.07/642,803.31
  6. Step 6: Final answer
    x = 234,733.26

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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.