Home / 455,083.28-682,599.40-139,539.32

Finding the Fourth Proportional to 455,083.28, 682,599.40 and 139,539.32

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Solution

The fourth proportional to 455,083.28, 682,599.40 and 139,539.32 is: 209,301.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,083.28 : 682,599.40 = 139,539.32 : x
  2. Step 2: Convert to fraction form
    455,083.28/682,599.40 = 139,539.32/x
  3. Step 3: Cross multiply
    455,083.28x = 682,599.40 × 139,539.32
  4. Step 4: Simplify right side
    455,083.28x = 95,249,456,108.41
  5. Step 5: Solve for x
    x = 95,249,456,108.41/455,083.28
  6. Step 6: Final answer
    x = 209,301.15

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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.