Home / 356,284.09-491,654.50-195,139.86

Finding the Fourth Proportional to 356,284.09, 491,654.50 and 195,139.86

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Solution

The fourth proportional to 356,284.09, 491,654.50 and 195,139.86 is: 269,283.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,284.09 : 491,654.50 = 195,139.86 : x
  2. Step 2: Convert to fraction form
    356,284.09/491,654.50 = 195,139.86/x
  3. Step 3: Cross multiply
    356,284.09x = 491,654.50 × 195,139.86
  4. Step 4: Simplify right side
    356,284.09x = 95,941,390,298.37
  5. Step 5: Solve for x
    x = 95,941,390,298.37/356,284.09
  6. Step 6: Final answer
    x = 269,283.40

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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.