Home / 395,045.16-545,158.38-213,753.12

Finding the Fourth Proportional to 395,045.16, 545,158.38 and 213,753.12

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Solution

The fourth proportional to 395,045.16, 545,158.38 and 213,753.12 is: 294,977.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,045.16 : 545,158.38 = 213,753.12 : x
  2. Step 2: Convert to fraction form
    395,045.16/545,158.38 = 213,753.12/x
  3. Step 3: Cross multiply
    395,045.16x = 545,158.38 × 213,753.12
  4. Step 4: Simplify right side
    395,045.16x = 116,529,304,619.15
  5. Step 5: Solve for x
    x = 116,529,304,619.15/395,045.16
  6. Step 6: Final answer
    x = 294,977.17

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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.