Home / 642,731.76-964,161.54-238,032.27

Finding the Fourth Proportional to 642,731.76, 964,161.54 and 238,032.27

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Solution

The fourth proportional to 642,731.76, 964,161.54 and 238,032.27 is: 357,072.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,731.76 : 964,161.54 = 238,032.27 : x
  2. Step 2: Convert to fraction form
    642,731.76/964,161.54 = 238,032.27/x
  3. Step 3: Cross multiply
    642,731.76x = 964,161.54 × 238,032.27
  4. Step 4: Simplify right side
    642,731.76x = 229,501,560,012.90
  5. Step 5: Solve for x
    x = 229,501,560,012.90/642,731.76
  6. Step 6: Final answer
    x = 357,072.07

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1.5x scale

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.