Home / 395,154.45-545,312.50-213,866.27

Finding the Fourth Proportional to 395,154.45, 545,312.50 and 213,866.27

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Solution

The fourth proportional to 395,154.45, 545,312.50 and 213,866.27 is: 295,135.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,154.45 : 545,312.50 = 213,866.27 : x
  2. Step 2: Convert to fraction form
    395,154.45/545,312.50 = 213,866.27/x
  3. Step 3: Cross multiply
    395,154.45x = 545,312.50 × 213,866.27
  4. Step 4: Simplify right side
    395,154.45x = 116,623,953,413.45
  5. Step 5: Solve for x
    x = 116,623,953,413.45/395,154.45
  6. Step 6: Final answer
    x = 295,135.11

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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.