Home / 205,189.93-307,893.27-145,603.45

Finding the Fourth Proportional to 205,189.93, 307,893.27 and 145,603.45

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Solution

The fourth proportional to 205,189.93, 307,893.27 and 145,603.45 is: 218,482.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,189.93 : 307,893.27 = 145,603.45 : x
  2. Step 2: Convert to fraction form
    205,189.93/307,893.27 = 145,603.45/x
  3. Step 3: Cross multiply
    205,189.93x = 307,893.27 × 145,603.45
  4. Step 4: Simplify right side
    205,189.93x = 44,830,320,076.30
  5. Step 5: Solve for x
    x = 44,830,320,076.30/205,189.93
  6. Step 6: Final answer
    x = 218,482.07

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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.