Home / 205,374.30-307,543.05-134,871.90

Finding the Fourth Proportional to 205,374.30, 307,543.05 and 134,871.90

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Solution

The fourth proportional to 205,374.30, 307,543.05 and 134,871.90 is: 201,967.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,374.30 : 307,543.05 = 134,871.90 : x
  2. Step 2: Convert to fraction form
    205,374.30/307,543.05 = 134,871.90/x
  3. Step 3: Cross multiply
    205,374.30x = 307,543.05 × 134,871.90
  4. Step 4: Simplify right side
    205,374.30x = 41,478,915,485.30
  5. Step 5: Solve for x
    x = 41,478,915,485.30/205,374.30
  6. Step 6: Final answer
    x = 201,967.41

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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.