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Finding the Fourth Proportional to 395,254.16, 545,314.44 and 223,150.64

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Solution

The fourth proportional to 395,254.16, 545,314.44 and 223,150.64 is: 307,870.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,254.16 : 545,314.44 = 223,150.64 : x
  2. Step 2: Convert to fraction form
    395,254.16/545,314.44 = 223,150.64/x
  3. Step 3: Cross multiply
    395,254.16x = 545,314.44 × 223,150.64
  4. Step 4: Simplify right side
    395,254.16x = 121,687,266,287.24
  5. Step 5: Solve for x
    x = 121,687,266,287.24/395,254.16
  6. Step 6: Final answer
    x = 307,870.93

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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.