Home / 309,862.02-427,584.51-173,877.06

Finding the Fourth Proportional to 309,862.02, 427,584.51 and 173,877.06

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Solution

The fourth proportional to 309,862.02, 427,584.51 and 173,877.06 is: 239,936.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,862.02 : 427,584.51 = 173,877.06 : x
  2. Step 2: Convert to fraction form
    309,862.02/427,584.51 = 173,877.06/x
  3. Step 3: Cross multiply
    309,862.02x = 427,584.51 × 173,877.06
  4. Step 4: Simplify right side
    309,862.02x = 74,347,137,500.34
  5. Step 5: Solve for x
    x = 74,347,137,500.34/309,862.02
  6. Step 6: Final answer
    x = 239,936.27

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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.