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Finding the Fourth Proportional to 395,374.37, 545,655.71 and 225,634.01

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Solution

The fourth proportional to 395,374.37, 545,655.71 and 225,634.01 is: 311,397.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,374.37 : 545,655.71 = 225,634.01 : x
  2. Step 2: Convert to fraction form
    395,374.37/545,655.71 = 225,634.01/x
  3. Step 3: Cross multiply
    395,374.37x = 545,655.71 × 225,634.01
  4. Step 4: Simplify right side
    395,374.37x = 123,118,484,798.53
  5. Step 5: Solve for x
    x = 123,118,484,798.53/395,374.37
  6. Step 6: Final answer
    x = 311,397.23

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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.