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Finding the Fourth Proportional to 395,944.07, 545,798.12 and 242,698.28

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Solution

The fourth proportional to 395,944.07, 545,798.12 and 242,698.28 is: 334,552.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,944.07 : 545,798.12 = 242,698.28 : x
  2. Step 2: Convert to fraction form
    395,944.07/545,798.12 = 242,698.28/x
  3. Step 3: Cross multiply
    395,944.07x = 545,798.12 × 242,698.28
  4. Step 4: Simplify right side
    395,944.07x = 132,464,261,008.75
  5. Step 5: Solve for x
    x = 132,464,261,008.75/395,944.07
  6. Step 6: Final answer
    x = 334,552.97

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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.