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Finding the Fourth Proportional to 395,175.52, 545,337.12 and 225,412.48

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Solution

The fourth proportional to 395,175.52, 545,337.12 and 225,412.48 is: 311,066.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,175.52 : 545,337.12 = 225,412.48 : x
  2. Step 2: Convert to fraction form
    395,175.52/545,337.12 = 225,412.48/x
  3. Step 3: Cross multiply
    395,175.52x = 545,337.12 × 225,412.48
  4. Step 4: Simplify right side
    395,175.52x = 122,925,792,655.26
  5. Step 5: Solve for x
    x = 122,925,792,655.26/395,175.52
  6. Step 6: Final answer
    x = 311,066.31

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1.5x scale

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.