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Finding the Fourth Proportional to 395,850, 546,307.56 and 217,036.56

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Solution

The fourth proportional to 395,850, 546,307.56 and 217,036.56 is: 299,529.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,850 : 546,307.56 = 217,036.56 : x
  2. Step 2: Convert to fraction form
    395,850/546,307.56 = 217,036.56/x
  3. Step 3: Cross multiply
    395,850x = 546,307.56 × 217,036.56
  4. Step 4: Simplify right side
    395,850x = 118,568,713,524.39
  5. Step 5: Solve for x
    x = 118,568,713,524.39/395,850
  6. Step 6: Final answer
    x = 299,529.40

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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.