Home / 395,265.40-545,466.14-213,977.20

Finding the Fourth Proportional to 395,265.40, 545,466.14 and 213,977.20

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Solution

The fourth proportional to 395,265.40, 545,466.14 and 213,977.20 is: 295,288.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,265.40 : 545,466.14 = 213,977.20 : x
  2. Step 2: Convert to fraction form
    395,265.40/545,466.14 = 213,977.20/x
  3. Step 3: Cross multiply
    395,265.40x = 545,466.14 × 213,977.20
  4. Step 4: Simplify right side
    395,265.40x = 116,717,317,332.01
  5. Step 5: Solve for x
    x = 116,717,317,332.01/395,265.40
  6. Step 6: Final answer
    x = 295,288.48

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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.